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2019-04-29, M2.1 Donegal

On the 29th April 2019 at 21:18:23 local time (20:18:23 GMT) an earthquake of magnitude 2.1 occurred in Donegal. The location of the epicentre is 54.56N, 7.96W, about 15km south-east from Donegal town and 15km north-east from Ballyshannon, see figure below.  The earthquake was detected automatically by the Irish National Seismic Network (INSN) which is operated by the Dublin Institute for Advanced Studies (DIAS) in co-operation with the Geological Survey Ireland (GSI). The event was felt by members of the public in the south of Co. Donegal and parts of Co. Fermanagh and Co. Leitrim, see map at the bottom of this post. If you felt or heard this event please consider clicking here to fill out a small report. Short interviews about the earthquake were given by Dr Martin Möllhoff, Director of Seismic Networks at DIAS, in this ‘News at One’ bulletin on Radio RTE 1 and on OceanFM.

The event was recorded on the stations of the Irish National Seismic Network (INSN), see seismic traces below. Some stations from the BGS network in the UK detected the event as well.

Map of earthquake “felt” reports received from members of the public through the INSN online reporting system available here.

 

2018-09-05, M6.6, Hokkaido Japan

On the 5th September 2018 an earthquake measuring magnitude 6.6 occurred at 18:08:08 UTC near Hokkaido in Northern Japan. At least nine people have been killed, millions of homes lost power and landslides caused considerable damage to houses and infrastructure.

The earthquake was recorded at seismic stations worldwide, including stations of the Irish National Seismic Network (INSN), see seismic waveforms below (select figure to enlarge).

Further information can be obtained from this EMSC webpage:

https://www.emsc-csem.org/Earthquake/earthquake.php?id=711209

 

2018-08-19, M8.2, Fiji Region

On the August 18, 2018, M 8.2 earthquake near Fiji occurred as the result of deep, normal faulting approximately 560 km beneath the South Pacific Ocean several hundred kilometers to the west of the Tonga Trench. There were no reports of casualties.

Earthquakes that have focal depths greater than 300 km are commonly termed “deep-focus” earthquakes. Deep-focus earthquakes cause less damage on the ground surface above their foci than similar-magnitude shallow-focus earthquakes, but large deep-focus earthquakes may be felt at great distance from their epicenters.

 

The earthquake was recorded at seismic stations worldwide, including stations of the Irish National Seismic Network (INSN), see seismic waveforms below (select figure to enlarge).

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