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2022-03-16, M7.3, Japan

At 14:36:33 (UTC) on the 16th of March 2022 a magnitude 7.3 earthquake occurred near the east coast of Honshu Japan, 57 km east-north-east of Namie which is located in Fukushima Prefecture (see map below). The NWS Pacific Tsunami Warning Center initially issued a warning for hazardous waves along the coast of Japan but now reports the threat from this event has passed. The Tokyo Electric Power Company reports over 2 million households in nine prefectures have been left without electricity due to the earthquake.

Japans tectonic setting is complex as it is influenced by the North America plate, Pacific plate, Philippine Sea plate, and Eurasian plate. A detailed summary of the region is available from the USGS at the following link https://earthquake.usgs.gov/earthquakes/eventpage/us6000h519/region-info.

The event was recorded by seismic stations worldwide, including stations in the Irish National Seismic Network (INSN) (see figure below). The first seismic waves originating from the Japan earthquake arrived in Ireland ~15 minutes after the event origin.

For more information on the M7.3 Japan earthquake please see these links:

https://earthquake.usgs.gov/earthquakes/eventpage/us6000h519/executive?utm_medium=email&utm_source=ENS&utm_campaign=realtime

https://www.jma.go.jp/bosai/map.html#5/38.393/143.174/&elem=warn&contents=tsunami&lang=en

http://geofon.gfz-potsdam.de/eqinfo/event.php?id=gfz2022fgid

https://www.emsc-csem.org/Earthquake/earthquake.php?id=1107417

Past Seismograms
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Live Seismograms
All stations here
Filtered versions here
DSB - Dublin
VAL - Kerry

Past Spectrograms
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Live Spectrograms
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ITIP - N. Tipperary
IMAY - Mayo