What happened on 26 December 2004 off the coast of Sumatra?
December 26, 2004 7:58 a.m.: A magnitude 9.1 earthquake occurs off the northwest coast of Sumatra. +15 minutes: The Pacific Tsunami Warning Center in Hawaii registers the quake.
What caused the earthquake of December 26 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).
How long did the December 26 2004 earthquake last?
Banda Aceh reported the largest number of deaths. The earthquake was the third-largest ever recorded, the largest in the 21st century and had the longest duration of faulting ever observed, between eight and ten minutes.
How long did the Sumatra earthquake last for?
The whole rupture lasted about 10 minutes. Compare this with California’s 1994 Northridge earthquake, which ruptured about 20 km (12 miles) and lasted 15 seconds. The portion of the fault that ruptured lies deep in the earth’s crust, in places as much as 50 km (31 miles) below the ocean floor.
What was the longest earthquake ever?
The 1960 Valdivia earthquake and tsunami (Spanish: Terremoto de Valdivia) or the Great Chilean earthquake (Gran terremoto de Chile) on 22 May 1960 was the most powerful earthquake ever recorded….1960 Valdivia earthquake.
| Valdivia after the 22 May earthquake | |
|---|---|
| Iquique Santiago Punta Arenas | |
| Casualties | 1,000–6,000 |
Where is a tsunami most likely to happen?
– International Tsunami Information Center – Dr. George Pararas-Carayannis – Evaluation of Mega-Tsunami – Mader (2001) (PDF 1.4MB) – Ward and Day (2001) (PDF 0.7MB)
What caused the Christmas Day tsunami?
What caused the christmas day tsunami? A powerful undersea earthquake that struck off the coast of Sumatra island, Indonesia, set off the 2004 Indian Ocean tsunami, also known as the Christmas or Boxing Day tsunami, on Sunday morning, Dec. 26, 2004.
What caused the Boxing Day tsunami?
A quarter of a million people died.
How deadly is a tsunami?
Hurricane,Typhoon and Cyclone.