What caused the Pangandaran tsunami?
By Gabriel Cooper
What caused the Pangandaran tsunami?
On 20 August 1977, a magnitude 8.3 normal-fault earthquake occurred within the Australia plate about 1,200 km east-south- east of the 17 July 2006 Java earthquake, producing a tsunami that had a maximum run-up height of 15 m and killed almost 200 people.
What plate boundary caused the Indonesian tsunami?
The December 26, 2004 M=9.1 Sumatra-Andaman earthquake occurred along a tectonic subduction zone in which the India Plate, an oceanic plate, is being subducted beneath the Burma micro-plate, part of the larger Sunda plate.
What caused the 2006 Pangandaran earthquake and tsunami?
The earthquake was the result of thrust faulting at the Sunda Trench. A comparison was made with the earlier 2002 Sumatra earthquake, a M7. 5 submarine earthquake of a similar size that also occurred along the Sunda Arc and at a shallow depth, but one that did not result in a tsunami.
What causes earthquakes in Indonesia?
Earthquakes form a constant threat in Indonesia due to the meeting of major tectonic plates and volcanic activity in the region.
What was the worst earthquake ever?
1960 Valdivia earthquake
The 1960 Valdivia earthquake (Spanish: Terremoto de Valdivia) or the Great Chilean earthquake (Gran terremoto de Chile) on 22 May 1960 was the most powerful earthquake ever recorded. Various studies have placed it at 9.4–9.6 on the moment magnitude scale.
What causes an earthquake?
Earthquakes are the result of sudden movement along faults within the Earth. The movement releases stored-up ‘elastic strain’ energy in the form of seismic waves, which propagate through the Earth and cause the ground surface to shake.
Which tectonic plates cause earthquakes in Indonesia?
The subduction of the Indian Plate beneath the Eurasian Plate formed the volcanic arc in western Indonesia, one of the most seismically active areas on the planet with a long history of powerful eruptions and earthquakes.
