2016 Chiloé earthquake

Earthquake in Chile

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43°24′22″S 73°56′28″W / 43.406°S 73.941°W / -43.406; -73.941TypeThrust faultMax. intensityMMI VIII (Severe)Aftershocks> 30 Casualties0

The 2016 Chiloé earthquake with a magnitude of M_ww 7.6 struck 225 kilometres (140 mi) south-west of Puerto Montt in southern Chile at 11:22 local time, 25 December.^[1]^[2] The earthquake triggered a tsunami warning on coasts located up to 1,000 kilometres (620 mi) from the quake's epicentre, generating massive evacuation across the Greater Chiloé Island, after advice from the Chilean government.^[2] Although there was damage in some parts of the island, the government reported no casualties.

Earthquake

The earthquake occurred as a result of shallow thrust faulting in southern Chile. At the location of the earthquake, the oceanic Nazca plate converges with and subducts beneath the South America plate in an east-northeast direction, at a rate of approximately 73 mm/yr. The location, depth and shallow thrusting focal mechanism solution^[3] all indicate this earthquake likely occurred on the subduction zone interface.^[1]

Tsunami

A tsunami with a maximum height of 0.44 m (1.4 ft) was observed on Chiloé Island.^[4]

References

^ ^a ^b ^c ^d "M7.6 – 39km SSW of Puerto Quellón, Chile". United States Geological Survey. Retrieved December 25, 2016.
^ ^a ^b "Chile earthquake triggers tsunami warning". BBC. 25 December 2016. Retrieved 25 December 2016.
^ "M 7.6 - 41km SW of Puerto Quellon, Chile --- Focal mechanism solution". USGS Earthquake.
^ "Tsunami Event: CHILOE, CHILE". ngdc.noaa.com.