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Ellipses represent the ruptures of the 1679, 1762, 1881 and 1941 earthquakes 9,23,30,31. Red star shows the epicentre of the 2004 earthquake and the brown shaded region shows the rupture zone.
8 lis 2023 · On 18 November 2022, a strong earthquake occurred in the near trench of Sunda Arc southwest of southern Sumatra, generating a small tsunami recorded at four tide gauge stations (KRUI, BINT, SBLT, and SIKA).
The trench stretches from the Lesser Sunda Islands past Java, around the southern coast of Sumatra to the Andaman Islands, and forms the boundary between the Indo-Australian Plate and Eurasian Plate (more specifically, Sunda Plate).
2 mar 2006 · From 0.5° to about 6° S, the Sunda megathrust has produced two giant earthquakes in recorded history 7,30, and geodetic measurements show it has been fully locked above a depth of 40 to 55 km...
15 mar 2013 · Map showing the West Sumatra subduction zone. The Indo-Australian Plate is moving toward the Eurasian Plate forming the Sunda Trench. The blue circles on the inset map of the Sunda Arc marks the position of the Sunda Strait, and the red box is the location of the study area.
The Sunda Trench is a subduction zone extending in an arch from the Northwestern tip of Sumatra to Flores in Eastern Indonesia. A strong earthquake in this zone can generate a tsunami that arrives at the coast within 20 minutes, leaving little time for issuing an early warning.
The study is focused on the Sunda Trench (also earlier called Java Trench), the deepest oceanic depression of the Indian Ocean, stretching 4–5 km parallel to the Sunda Island Arc, along its foot (Becker et al., 2009).
