What caused the Sumatra earthquake 2004?
The tsunami from the 2004 M=9.1 Sumatra-Andaman earthquake was primarily caused by vertical displacement of the seafloor, in response to slip on the inter-plate thrust fault (see Tectonics section above). The other, the local tsunami, travelled towards Indonesia, Thailand, and nearby islands in less than an hour.
How long did the 2004 Sumatra earthquake last?
10 minutes
The 2004 quake ruptured a 900-mile stretch along the Indian and Australian plates 31 miles below the ocean floor. Rather than delivering one violent jolt, the quake lasted an unrelenting 10 minutes, releasing as much pent-up power as several thousand atomic bombs.
Why didn’t they know the 2004 tsunami was coming?
Many of the hundreds of people who died when a tsunami struck the Indonesian coast Saturday night were nowhere near shelter. Quite simply, they had no idea it was coming. That’s because despite a history of tsunamis caused by volcanoes and earthquakes, Indonesia has not had an effective early warning system for years.
What to do after a tsunami?
What to Do After a Tsunami. Continue listening to a NOAA Weather Radio , Coast Guard emergency frequency station, or other reliable source for emergency information. The tsunami may have damaged roads, bridges, or other places that may be unsafe. Help injured or trapped persons. Give first aid where appropriate. Call for help.
When did the tsunami hit Thailand?
Thailand was one of the countries that was hit by the 2004 Indian Ocean earthquake and tsunami. Due to proximity of the Andaman coasts of Thailand situated just about 500 km east of the earthquake epicentre, the tsunami took just 2 hours to reach and strike the western coastline of the country. The Thai government reported 4,812 confirmed deaths, 8,457 injuries, and 4,499 missing after the country was hit by a tsunami caused by the Indian Ocean earthquake on 26 December 2004.
What caused the Indonesian tsunami?
The December 26, 2004 Indian Ocean tsunami was caused by an earthquake that is thought to have had the energy of 23,000 Hiroshima-type atomic bombs. [1] The epicenter of the 9.0 magnitude quake was located in the Indian Ocean near the west coast of Sumatra. [2]
How many earthquakes are there in Indonesia?
Based on the records of the USGS , Indonesia has had more than 150 earthquakes with magnitude > 7 in the period 1901–2017.