Sunday 7 August 2016

Magnitude 5.4 Earthquake beneath southern Mindanao Island.

The United States Geological Survey recorded a Magnitude 5.4 Earthquake at a depth of 91.9 km beneath the southern Mindanao Island, slightly before 5.10 pm local time (slightly before 9.10 am GMT) on Saturday 6 August 2016. There are no reports of any damage or casualties associated with this event, though people reported feeling it across southern Mindanao.

The approximate location of the 6 August 2016 Mindanao Earthquake. Google.

The geology of the central Philippines is Complex. The west of Mindanao Island is located on the Banda (or Sunda) Microplate, and the east on the Philippine Plate, which is being subducted beneath the Sunda (or Banda) Microplate along the central part of the island. Immediately to the east of the Island the Pacific Plate is being subducted along the Philippine Trench, and passes beneath eastern Mindanao as it sinks into the Earth. This is not a smooth process, an the plates constantly stick together then break apart again as the pressure builds up, resulting in Earthquakes.

 Subduction beneath the Philippines. Yves Descatoire/Singapore Earth Observatory.

Witness accounts of Earthquakes can help geologists to understand these events, and the structures that cause them. The international non-profit organization Earthquake Report is interested in hearing from people who may have felt this event; if you felt this quake then you can report it to Earthquake Report here.
See also... 5.0 Earthquake in the Hinatuan Passage.                                                        The United States Geological Survey recorded a Magnitude 5.0 Earthquake at a depth of 44.3 km beneath the Hinatuan Passage, to the northeast... 4.8 Earthquake on Mindanao Island, Philippines.                                      The United States Geological Survey recorded a Magnitude 4.8 Earthquake at a depth of 10.1 km, 14 km to the southeast of the city of Tandag in..., Philippines.                                     Nine people are known to have died and several more are missing after heavy rain led to a series of flash floods and landslides on Mindanao Island in the Philippines. A seven year old girl was killed in a...
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