The document describes a tsunami warning system, explaining that tsunamis are large ocean waves usually caused by undersea earthquakes, volcanic eruptions, or landslides. The system uses seismometers to detect earthquakes, tide gauges to measure changes in sea level, and NOAA and DART stations that can detect tsunamis, allowing warnings to be issued to protect coastal areas from potential damage from an approaching tsunami.

1. TSUNAMI WARNING
SYSTEM

2. A large wave on the ocean, usually caused by an
undersea earthquake, a volcanic eruption, or
coastal landslide. A tsunami can travel hundreds
of miles over the open sea and cause extensive
damage when it encounters land. Also called tidal
waves.
TSUNAMI

3. A large wave on the ocean, usually caused by an
undersea earthquake, a volcanic eruption, or coastal
landslide. A tsunami can travel hundreds of miles over the
open sea and cause extensive damage when it encounters
land. Also called tidal waves.
How Tsunami Occurs?

4. EARTH QUAKE

5. Richter Magnitude Scale

6. Tectonics Plates

7. VOLCANIC ERUPTION

8. VOLCANIC ERUPTION

9. TSUNAMI WARNING SYSTEM

11. SEISMOMETERS

12. TIDE GAUAGES

13. NOAA and DART Stations
NOAA - National Oceanic and
Atmospheric Administrations
Responsible for providing
tsunami warnings to the
Nation
DART - Deep-ocean Assessment
and Reporting of Tsunamis
Station that detect tsunamis

14. TSUNAMI WARNING SYSTEM

15. DART SYSTEM