The Taiwan Central Weather Bureau
reported a Magnitude 5.2 Earthquake at a depth of 10 km roughly 34 km to the northwest of the city of Taitung in southern Taiwan slightly after 9.50
am
local time (slightly after 1.50 am GMT) on Wedneday 3 April 2019. There are no reports of any damage or casualties
associated with this event, but it was felt across much of southern and eastern
Taiwan.
Taiwan has a complex tectonic setting, lying on the boundary between the Eurasian and Philippine Plates, with the Eurasian Plate being subducted beneath the Philippine Plate in the South and the Philippine Plate being subducted beneath the Eurasian in the East. Subduction is not a smooth process even in simple settings, with plates typically sticking together as pressure from tectonic expansion elsewhere builds up, then suddenly breaking apart and shifting abruptly, causing Earthquakes.
The motion of the tectonic plates beneath Taiwan. The University of Memphis.
Witness
accounts of Earthquakes can help geologists to understand these events,
and the structures that cause them. The international non-profit
organisation 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...
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