Sheet1AiraDukonoEbekoIbuKarymskyKlyuchevskoyKrakatauMerapiNevados .docx

Sheet1AiraDukonoEbekoIbuKarymskyKlyuchevskoyKrakatauM
erapiNevados de ChillanRincon de la
ViejaSemeruSheveluchShishaldinSuwanosejimaYasurMarch 25-
31, 2019JMA reported that during 23-30 March incandescence
from Minamidake Crater (at Aira Caldera’s Sakurajima volcano)
was visible nightly. Twelve eruptive events were recorded along
with three explosions during 23-27 March. An eruption at 1041
on 27 March produced an ash plume that rose 1.8 km above the
crater rim and ejcted material 800-1,100 m away from the
crater. The Alert Level remained at 3 (on a 5-level scale).
Source: Japan Meteorological Agency (JMA)Based on satellite
and wind model data, the Darwin VAAC reported that during
25-31 March ash plumes from Dukono rose to 1.8-2.3 km
(7,000-8,000 ft) a.s.l. and drifted in multiple directions. The
Alert Level remained at 2 (on a scale of 1-4), and the public
was warned to remain outside of the 2-km exclusion zone.
Source: Darwin Volcanic Ash Advisory Centre
(VAAC)Volcanologists in Severo-Kurilsk (Paramushir Island),
about 7 km E of Ebeko, observed explosions during 24-25
March that sent ash plumes up to 2.5 km (8,200 ft) a.s.l. Ash
plumes drifted NE and W. The Aviation Color Code remained at
Orange (the second highest level on a four-color scale).
Source: Kamchatkan Volcanic Eruption Response Team
(KVERT)PVMBG reported that at 1730 on 26 March, at 0642 on
28 March, and at 0855 on 29 March gray ash plumes rose 600 m
above Ibu’s summit and drifted W and N. The Darwin VAAC
stated that on 30 March an ash plume rose to 2.1 km (7,000 ft)
a.s.l. and drifted NE based on satellite images and weather
models. The Alert Level remained at 2 (on a scale of 1-4), and
the public was warned to stay at least 2 km away from the
active crater, and 3.5 km away on the N side.

Sources: Pusat Vulkanologi dan Mitigasi Bencana Geologi
(PVMBG, also known as CVGHM), Darwin Volcanic Ash
Advisory Centre (VAAC)KVERT reported that Strombolian
activity at Klyuchevskoy was visible during 20-27 March, and a
bright thermal anomaly was identified in satellite images those
same days. Vulcanian activity was visible on 20 and 25 March;
ash plumes drifted as far as 180 km E and NE at altitudes of
5.5-6 km (18,000-19,700 ft) a.s.l. on those same days. The
Aviation Color Code remained at Orange.
(KVERT)BPPTKG reported that beginning at 1056 on 27 March
a seven-minute-long eruption at Merapi produced an ash plume
that rose 5 km above the crater rim and pyroclastic flows that
descended the SSE flank as far as 2 km. The ash plume drifted
mainly SW and caused ashfall within 20 km, particularly in
areas to the W and including the Mungkid subdistrict and in
Banyubiru Village. The report noted that there were no clear
precursors for the eruption. Eruptions at 2146 on 27 March and
at 0521 the next day generated ash plumes that rose 1 km and 2
km, respectively. Each lasted about 2 minutes and 40 seconds
based on the seismic data. Minor ashfall was noted in areas
within 5 km, especially to the W, including Krinjing subdistrict.
The Alert Level remained at 2 (on a scale of 1-4), and residents
were warned to stay outside of the 3-km exclusion zone.
Source: Balai Penyelidikan dan Pengembangan Teknologi
Kebencanaan Geologi (BPPTKG)The Buenos Aires VAAC
reported that during 25 and 29-31 March ash plumes from
Nevados de Chillán rose to altitudes of 3.7-5.5 km (12,000-
18,000 ft) a.s.l. and drifted SE.
Source: Buenos Aires Volcanic Ash Advisory Center
(VAAC)PVMBG reported that during 23-29 March white
plumes rose 100 m above Semeru’s summit. Incandescent

material was ejected 20 m above the Jonggring-Seloko Crater.
Incandescent material from the ends of lava flows descended
200-500 m, reaching a maximum distance of 750 m from the
crater. The Alert Level remained at 2 (on a scale of 1-4), and
the public was reminded to stay outside of the general 1-km
radius from the summit and 4 km on the SSE flank.
Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi
(PVMBG, also known as CVGHM)
KVERT reported that a thermal anomaly over Sheveluch was
identified in satellite images during 20-27 March. A gas-and-
steam plume containing some ash drifted 45 km N on 25 March.
The Aviation Color Code remained at Orange (the second
highest level on a four-color scale).
(KVERT)AVO reported elevated seismicity at Shishaldin during
25-31 March characterized by continuous low-level tremor.
Steam-and-gas plumes rising from the summit crater were
occasionally recorded by the webcam and identified in satellite
images. Weakly- to- moderately elevated surface temperatures
were identified in satellite images during 29-30 March. The
Volcano Alert Level remained at Watch and the Aviation Color
Code remained at Orange.
Source: US Geological Survey Alaska Volcano Observatory
(AVO)JMA reported that during 19-27 March incandescence
from Suwanosejima’s Ontake Crater was visible nightly. One
explosion was recorded on 23 March and eruptive events were
detected during 23-24 March; ringing sounds were noted in a
village 4 km SSW. Gray-white plumes rose 700 m above the
crater rim on 24 March. The Alert Level remained at 2 (on a 5-
level scale).
Source: Japan Meteorological Agency (JMA)On 27 March the
Vanuatu Meteorology and Geo-Hazards Department (VMGD)

reported that activity at Yasur continued to be elevated with
ongoing ash and/or gas emissions. The Alert Level remained at
2 (on a scale of 0-4). VMGD reminded residents and tourists
that hazardous areas were near and around the volcanic crater,
within a 395-m-radius permanent exclusion zone, and that
volcanic ash and gas could reach areas impacted by trade winds.
Source: Vanuatu Meteorology and Geo-Hazards Department
(VMGD)April 1-7, 2020JMA reported that during 30 March-6
April incandescence from Minamidake Crater (at Aira Caldera’s
Sakurajima volcano) was visible nightly. The seismic network
recorded 22 eruptive events and one explosion (at 1558 on 4
April). The highest plume during the period rose to 3.8 km
above the crater rim, visible at 1621 on 4 April. Material was
ejected 500-900 m away from the crater. The Alert Level
remained at 3 (on a 5-level scale).
and wind model data, the Darwin VAAC reported that during 1-
7 April ash plumes from Dukono rose to 1.8-2.4 km (6,000-
8,000 ft) a.s.l. and drifted in multiple directions. The Alert
Level remained at 2 (on a scale of 1-4), and the public was
warned to remain outside of the 2-km exclusion zone.
Sources: Darwin Volcanic Ash Advisory Centre (VAAC), Pusat
Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also
known as CVGHM)Volcanologists in Severo-Kurilsk
(Paramushir Island), about 7 km E of Ebeko, observed
explosions during 29 and 31 March and 1-2 April that sent ash
plumes up to 2.2 km (7,200 ft) a.s.l. Ash plumes drifted NE and
E, causing ashfall in Severo-Kurilsk on 1 April. A thermal
anomaly was identified in satellite images during 30-31 March.
The Aviation Color Code remained at Orange (the second

(KVERT)
The Darwin VAAC reported that on 2 April an ash plume from
Ibu rose to 2.1 km (7,000 ft) a.s.l. and drifted SW based on
satellite images and weather models. On 7 April an ash plume
rose to 1.8 km (6,000 ft) a.s.l. and drifted S. The Alert Level
remained at 2 (on a scale of 1-4), and the public was warned to
stay at least 2 km away from the active crater, and 3.5 km away
on the N side.
known as CVGHM)KVERT reported that Strombolian activity at
Klyuchevskoy was visible during 27 March-3 April, and a bright
thermal anomaly was identified in satellite images those same
days except for 1 April. Vulcanian activity was visible during
29-20 March; ash plumes drifted as far as 455 km E and NE at
altitudes of 5.5-6 km (18,000-19,700 ft) a.s.l. on those same
days. The Aviation Color Code remained at Orange.
(KVERT)PVMBG and BPPTKG reported that incandescence
from Merapi’s summit crater was visible at night and in the
morning during 30 March-5 April. White plumes with variable
densities rose as high as 600 m above the summit. An eruption
at 1510 on 2 April generated an ash plume that rose 3 km above
the summit. The morphology of the lava dome in the summit
crater changed slightly based on a comparison of photos (taken
from the DELES 3 station, SW) from 15 March to 2 April. The
Alert Level remained at 2 (on a scale of 1-4), and residents were
warned to stay outside of the 3-km exclusion zone.
Sources: Balai Penyelidikan dan Pengembangan Teknologi
Kebencanaan Geologi (BPPTKG), Pusat Vulkanologi dan
Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)
The Buenos Aires VAAC reported that during 1-2 and 4-6 April
ash plumes from Nevados de Chillán rose to altitudes of 3.7-4.3

km (12,000-14,000 ft) a.s.l. and drifted N, NE, E, and SE, based
on webcam and satellite images.
Source: Buenos Aires Volcanic Ash Advisory Center
(VAAC)OVSICORI-UNA reported that occasional low-
frequency and low-amplitude volcanic earthquakes were
ongoing at Rincón de la Vieja. A steam explosion was recorded
at 0240 on 1 April. An eruption at 0824 on 4 April generated a
plume that rose 1 km above the crater rim. Continuous activity
during part of 6-7 April produced emissions rising 50 m above
the crater rim.
Source: Observatorio Vulcanologico y Sismologico de Costa
Rica-Universidad Nacional (OVSICORI-UNA)PVMBG reported
that during 30 March-5 April white plumes rose 100 m above
Semeru’s summit. Incandescent material was ejected 10-50 m
above the Jonggring-Seloko Crater. Incandescent material from
the ends of lava flows descended 700 m, reaching a maximum
distance of 950 m from the crater. The Alert Level remained at
2 (on a scale of 1-4), and the public was reminded to stay
outside of the general 1-km radius from the summit and 4 km on
the SSE flank.
(PVMBG, also known as CVGHM)KVERT reported that a
thermal anomaly over Sheveluch was identified in satellite
images during 27 March-3 April. The Aviation Color Code
remained at Orange (the second highest level on a four-color
scale).
(KVERT)
AVO reported elevated seismicity at Shishaldin during 1-7 April
characterized by weak continuous tremor and occasional low-
frequency earthquakes. The webcam recorded steam plumes
rising from the summit crater on 1 April. Weakly elevated

surface temperatures were visible in satellite images on a few
days. The Volcano Alert Level remained at Watch and the
Aviation Color Code remained at Orange.
(AVO)
JMA reported that during 27 March-3 April incandescence from
Suwanosejima’s Ontake Crater was visible nightly. An eruptive
event on 2 April produced a grayish-white plume that rose 800
m above the crater rim; ringing sounds were noted in a village 4
km SSW. The Alert Level remained at 2 (on a 5-level scale).
Source: Japan Meteorological Agency (JMA)Based on webcam
images and information from the Vanuatu Meteorology and
Geo-Hazards Department (VMGD), the Wellington VAAC
reported that during 2-3 April low-level ash plumes from Yasur
rose to an altitude of 1.5 km (5,000 ft) a.s.l. and drifted N and
SE. Ashfall was confirmed on the SSW parts of the island.
Sources: Wellington Volcanic Ash Advisory Center (VAAC),
Vanuatu Meteorology and Geo-Hazards Department
(VMGD)April 8-14, 2020JMA reported that during 6-13 April
incandescence from Minamidake Crater (at Aira Caldera’s
Sakurajima volcano) was visible nightly. The seismic network
recorded 16 eruptive events and 6 explosions. Ash plumes rose
as high as 2 km above the crater rim and material was ejected
300-500 m away from the crater. The Alert Level remained at 3
(on a 5-level scale).
and wind model data, the Darwin VAAC reported that during 8-
14 April ash plumes from Dukono rose to 2.1-3 km (7,000-
10,000 ft) a.s.l. and drifted in multiple directions. The Alert
warned to remain outside of the 2-km exclusion zone.

explosions during 4-5 and 9 April that sent ash plumes up to 1.5
km (4,900 ft) a.s.l. Ash plumes drifted NE. A thermal anomaly
was visible in satellite images on 5 April. The Aviation Color
Code remained at Orange (the second highest level on a four-
color scale).
(KVERT)The Darwin VAAC reported that during 8-10 and 13
April ash plumes from Ibu rose 1.8-2.1 km (6,000-7,000 ft)
a.s.l. and drifted N, SE, and S based on satellite images and
weather models. The Alert Level remained at 2 (on a scale of 1-
4), and the public was warned to stay at least 2 km away from
the active crater, and 3.5 km away on the N side.
known as CVGHM)KVERT reported that Strombolian activity at
Klyuchevskoy was visible during 3-10 April along with a bright
thermal anomaly identified in satellite images. Vulcanian
activity was visible during 6-9 April; ash plumes drifted 200 km
S, SE, and E at altitudes of 5.5-6 km (18,000-19,700 ft) a.s.l. on
those same days. The Aviation Color Code remained at Orange.
(KVERT)PVMBG reported that at 2158 and 2235 on 10 April an
eruptive event at Anak Krakatau generated dense white, gray,
and black ash plumes that rose as high as 2 km above the
summit and drifted S and E. The events were followed by
Strombolian activity that ejected incandescent material onto the
crater floor and summit areas; video revealed lightning visible
in the ash cloud. The Darwin VAAC issued a notice at 0145 on
11 April stating that an eruption plume had risen to 14.3 km

(47,000 ft) a.s.l., but noted low confidence in the altitude due to
the possible mixing of the eruption plume with meteorological
storm clouds. An intense thermal anomaly was visible. An hour
later the VAAC reported an on-going sulfur-rich plume rising to
11.3 km (37,000 ft) a.s.l. and drifting W; the previous plume
remained visible and continued to drift NW. Later that day ash
plumes rose to 3 km (10,000 ft) a.s.l. and drifted N. During 12-
13 April plumes comprised mostly of sulfur dioxide and steam
rose to 3 km (10,000 ft) a.s.l.; the plumes did not have a strong
ash signal. The Alert Level remained at 2 (on a scale of 1-4),
and the public was warned to remain outside of the 2-km-radius
hazard zone from the crater.
(PVMBG, also known as CVGHM)PVMBG reported that an
eruption at Merapi began at 0910 on 10 April and lasted for one
minute and 43 seconds. A gray ash plume rose as high as 3 km
above the summit and drifted NW. The Alert Level remained at
2 (on a scale of 1-4), and residents were warned to stay outside
of the 3-km exclusion zone.
(PVMBG, also known as CVGHM)OVSICORI-UNA reported
periodic hydrothermal explosions at Rincón de la Vieja during
8-14 April. A possible small eruption occurred at 0658 on 8
April and was followed by a decrease in the amplitude of tremor
signals. Beginning at 0033 on 11 April a small-scale
hydrothermal explosion was recorded by the infrasoiund and
seismic networks for 20 seconds. Water and sediment was
ejected onto the upper flanks of the volcano. The event was
recorded by the webcam located in Sensoria, 4 km N of the
crater. In the morning local residents noted that the water in the
Pénjamo River was milky white. A small hydrothermal
explosion at 0251 on 13 April produced a plume of steam and
gas that rose 500 m.

that during 6-12 April dense white-gray plumes rose 200-500 m
above Semeru’s summit. Incandescent material was ejected 20
m above the Jonggring-Seloko Crater. Incandescent material
from the ends of lava flows descended 200-1,000 m, reaching a
maximum distance of 750-1,500 m from the crater. The Alert
reminded to stay outside of the general 1-km radius from the
summit and 4 km on the SSE flank.
(PVMBG, also known as CVGHM)KVERT reported that a
thermal anomaly over Sheveluch was identified in satellite
images during 3-10 April. Explosions on 8 April generated ash
plumes that rose to 10 km (32,800 ft) a.s.l. and drifted 526 km
SE during 8-9 April. The Aviation Color Code remained at
(KVERT)AVO reported elevated seismicity at Shishaldin during
8-13 April characterized by occasional low-frequency
earthquakes. Minor steaming from the summit crater was
sometimes seen in satellite and webcam data. A small thermal
anomaly was visible in satellite data during 8-9 April. The
Volcano Alert Level remained at Watch and the Aviation Color
(AVO)JMA reported that during 3-10 April incandescence from
Suwanosejima’s Ontake Crater was visible nightly. Small
eruptions occasionally occurred, producing gray-white plumes
that rose as high as 900 m above the crater rim; rumbling
sounds were noted in a village 4 km SSW. The Alert Level

Source: Japan Meteorological Agency (JMA)April 15-21,
2020JMA reported that during 13-20 April incandescence from
Minamidake Crater (at Aira Caldera’s Sakurajima volcano) was
visible nightly. The seismic network occasionally recorded very
small eruptive events and three explosions. Ash plumes rose as
high as 2.5 km above the crater rim. The sulfur dioxide
emission rate was high at 1,700 and 2,000 tons/day on 14 and 17
April, respectively. The Alert Level remained at 3 (on a 5-level
scale).
15-21 April ash plumes from Dukono rose to 2.1 km (7,000 ft)
a.s.l. and drifted in multiple directions. The Alert Level
remain outside of the 2-km exclusion zone.
explosions on 13 April that sent ash plumes up to 2.5 km (8,200
ft) a.s.l. Ash plumes drifted SE. The Aviation Color Code
remained at Orange (the second highest level on a four-color
scale).
(KVERT)KVERT reported that over the past few weeks a minor
amount of ash was present in Karymsky’s gas-and-steam plumes
and trace ash deposits were visible on the surrounding snow. A
very weak thermal anomaly was identified in satellite data on 6
April. The Tokyo VAAC reported that on 18 April an ash plume
rose to 1.5 km (5,000 ft) a.s.l. and drifted SE based on satellite
data and information from UHPP (Petropavlovsk-Kamchatsky
Airport). The Aviation Color Code was raised to Yellow (the
second lowest level on a four-color scale) on 19 April.

Sources: Kamchatkan Volcanic Eruption Response Team
(KVERT), Tokyo Volcanic Ash Advisory Center
(VAAC)KVERT reported that Strombolian activity at
Klyuchevskoy was visible during 10-17 April along with a
bright thermal anomaly identified in satellite images. Gas-and-
steam plumes with some ash rose to 6 km (19,700 ft) a.s.l. and
drifted 200 km S and E on those same days. The Aviation Color
(KVERT)PVMBG reported that during 13-19 April dense gray
eruption plumes from Anak Krakatau rose as high as 50 m
above the crater rim, and white plumes rose 25-100 m above the
summit. Satellite data acquired on 15 April revealed new lava
flows from the 10-11 April eruption covering the vent and
extending the coastline W. The Alert Level remained at 2 (on a
scale of 1-4), and the public was warned to remain outside of
the 2-km-radius hazard zone from the crater.
(PVMBG, also known as CVGHM), Simon CarnPVMBG
reported relatively quiet conditions at Merapi during 13-19
April. White plumes of variable densities rose as high as 300 m
above the crater that had formed on 10 April. The Alert Level
remained at 2 (on a scale of 1-4), and residents were warned to
stay outside of the 3-km exclusion zone.
(PVMBG, also known as CVGHM)ONEMI and
SERNAGEOMIN reported that an explosive event at Nevados de
Chillán’s Nicanor Crater recorded at 1333 on 21 April was
associated with a long-period earthquake signal. The explosion
produced a gas-and-ash plume that rose 2.4 km above the vent
and drifted SE. The Alert Level remained at Yellow, the second
lowest level on a four-color scale, and residents were reminded

not to approach the crater within 3 km. ONEMI maintained an
Alert Level Yellow (the middle level on a three-color scale) for
the communities of Pinto, Coihueco, and San Fabián, and stated
that the public should stay at least 3 km away from the crater on
the SW flank and 5 km away on the ENE flank.
Sources: Servicio Nacional de Geología y Minería
(SERNAGEOMIN), Oficina Nacional de Emergencia-Ministerio
del Interior (ONEMI)OVSICORI-UNA reported periodic
hydrothermal explosions at Rincón de la Vieja during 15-21
April. At 0306 on 15 April a phreatic eruption was recorded by
the seismic network; weather conditions prevented visual
confirmation, though local residents reported lahars in the
Pénjamo, Azufrada, and Azul rivers. A steam plume from a
phreatic event at 0929 on 18 April rose 200 m above the crater
rim. Several small events were detected during the morning of
19 April but none produced plumes that rose above the rim. At
1014 a phreatic eruption ejected water and sediment 300 m
above the crater rim and onto the flank, and produced a steam-
and-gas plume that rose 1.5 km above rim. A lahar followed the
activity. During 20-21 April several low-energy puffs of gas-
and-steam were recorded. A low-energy event at 0626 on 21
April generated a steam plume that rose 1 km above the crater
rim.
that the eruption at Semeru continued during 1-16 April.
Eruptive events produced gray ash plumes that rose 400-600 m
above the summit. Additionally, gray-to-white gas plumes from
Jonggring-Seloko Crater rose 200-400 m; incandescent material
was ejected 10-20 m above the crater. Incandescent lava flows
traveled 500-1,000 m down the Kembar, Bang, and Kobokan
drainages (on the S flank). At 0608 on 17 April a pyroclastic
flow descended 2 km along the Bang drainage. Ash plumes
drifted N, SE, and SW during 15-16 and 20-21 April. The Alert

Advisory Centre (VAAC)KVERT reported that a thermal
anomaly over Sheveluch was identified in satellite images
during 10-17 April. The Aviation Color Code remained at
(KVERT)On 16 April AVO reported that seismicity at
Shishaldin had decreased during the past two weeks, though it
remained slightly above background levels. Additionally,
satellite images showed no new lava nor changes in the crater
area, and a decrease in surface temperatures. The Volcano Alert
Level was lowered to Advisory and the Aviation Color Code
was lowered to Yellow.
(AVO)
JMA reported that during 10-17 April incandescence from
Suwanosejima’s Ontake Crater was visible nightly. Small
eruptions occasionally occurred, along with an explosion on 15
April, producing gray-white plumes that rose as high as 1 km
above the crater rim; plumes drifted N on 15 April. Rumbling
sounds were noted in a village 4 km SSW. The Alert Level
Sources: Japan Meteorological Agency (JMA), Tokyo Volcanic
Ash Advisory Center (VAAC)April 22-28, 2020JMA reported
that during 20-27 April incandescence from Minamidake Crater
(at Aira Caldera’s Sakurajima volcano) was visible nightly. The
seismic network recorded 11 eruptive events and five
explosions. Ash plumes rose as high as 2.5 km above the crater

rim and blocks were ejected as far as 1.1 km away from the
crater. The Alert Level remained at 3 (on a 5-level scale).
22-28 April ash plumes from Dukono rose to 2.1 km (7,000 ft)
a.s.l. and drifted in multiple directions. The Alert Level
remain outside of the 2-km exclusion zone.
known as CVGHM)KVERT reported that a thermal anomaly
over Ebeko was identified in satellite images on 18 and 20
April. The Aviation Color Code remained at Orange (the second
(KVERT)KVERT reported that a thermal anomaly over
Karymsky was identified in satellite images on 17 and 21 April;
gas-and-steam plumes containing some ash drifted 80 km SE on
those same days. The Aviation Color Code remained at Yellow
(the second lowest level on a four-color scale).
(KVERT)KVERT reported that Strombolian activity at
Klyuchevskoy was visible during 17-24 April along with a
bright thermal anomaly identified in satellite images. Gas-and-
steam plumes with some ash rose to 6 km (19,700 ft) a.s.l. and
drifted 470 km E. A lava flow began to descend the SE flank in
the Apakhonchich drainage at 0607 on 19 April. The Aviation
Color Code remained at Orange.
(KVERT)PVMBG reported that during 21-28 April weather
conditions around Anak Krakatau often prevented visual

observations, though white plumes were sometimes seen rising
25-50 m high. The Alert Level remained at 2 (on a scale of 1-4),
and the public was warned to remain outside of the 2-km-radius
hazard zone from the crater.
(PVMBG, also known as CVGHM)OVSICORI-UNA reported
periodic phreatic explosions at Rincón de la Vieja during 22-28
April. At 0535 on 22 April a phreatic event was recorded by the
seismic network; weather conditions prevented good visual
observations, though a steam plume was seen rising 1.5 km
above the crater rim. There were five events recorded by the
seismic network during the morning of 24 April, with most
producing steam-and-gas plumes that rose 300-500 m above the
crater rim. The largest event, recorded at 1020, ejected water
and solid material 300 m above the crater rim and a steam
plume that rose 1 km. An event at 1547 on 26 April ejected
sediment 200 m above the rim and plumes 300 m above the rim.
A plume with no ash rose 1 km at 1720 on 27 April.
that the eruption at Semeru continued during 22-28 April.
Eruptive events produced dense gray ash plumes that rose as
high as 500 m above the summit. Lava blocks traveled 300 m
from the ends of lava flows in the Kembar drainage. The Alert
Advisory Centre (VAAC)KVERT reported that a thermal
anomaly over Sheveluch was identified in satellite images
during 17-24 April, and a plume of re-suspended ash drifted 140
km NE on 18 and 20 April. The Aviation Color Code remained

at Orange (the second highest level on a four-color scale).
(KVERT)JMA reported that during 17-24 April incandescence
from Suwanosejima’s Ontake Crater was visible nightly. Small
eruptions occasionally occurred, along with an explosion on 24
April, producing gray-white plumes that rose as high as 600 m
above the crater rim and ejected material as far as 600 m from
the crater. Rumbling sounds were noted in a village 4 km SSW.
The Alert Level remained at 2 (on a 5-level scale).
Source: Japan Meteorological Agency (JMA)April 29-May 5,
2020JMA reported that during 27 April-4 May incandescence
from Minamidake Crater (at Aira Caldera’s Sakurajima volcano)
was visible …
You need to have JavaScript enabled in order to access this site.
Dashboard
PAAN-3911-01Su20
Skip To Content

Sheet1AiraDukonoEbekoIbuKarymskyKlyuchevskoyKrakatauMerapiNevados .docx

Recommended

Recommended

More Related Content

Similar to Sheet1AiraDukonoEbekoIbuKarymskyKlyuchevskoyKrakatauMerapiNevados .docx

Similar to Sheet1AiraDukonoEbekoIbuKarymskyKlyuchevskoyKrakatauMerapiNevados .docx (11)

More from bjohn46

More from bjohn46 (20)

Recently uploaded

Recently uploaded (20)

Sheet1AiraDukonoEbekoIbuKarymskyKlyuchevskoyKrakatauMerapiNevados .docx