Tsunami warning system
Tsunami warning system or TWS detects tsunamis and issues warnings to prevent loss of life and property. It consists of two equally important components: a network of sensors to detect tsunamis and a communications infrastructure to issue timely alarms to start evacuation before the big waves reach the land to let the people rush to safety.[1]
There are two distinct types of tsunami warning systems: international and regional.[2] Both of those systems depend on the fact that tsunami waves travel, approximately, 15-30 times slower than seismic waves.[3]
Tsunami Warning System Media
Evacuation route sign in a low-lying coastal area on the West Coast of the United States
Japanese Tsunami warning sign
Tsunami Early Warning Tower board in Hikkaduwa, Sri Lanka
Tsunami warning system in East Timor
Evacuation route sign on the pavement in Kamakura, Japan
Mast with warning system, and sign detailing escape routes, on the coast of Okumatsushima, Miyagi prefecture, Japan (this coast was severely hit by the 2011 tsunami)
Notes
- ↑ Pacific Tsunamy Warning Center. Retrieved 2021-01-01.
- ↑ NOAA Tsunami Warnings and Forecasts. Retrieved 2011-03-21.
- ↑ Images for seismic waves