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2022-07-27, M7.0, Philippines

On July 27, 2022, at 00:43:24 UTC a magnitude 7.0 earthquake occurred in the island of Luzon in the Philippines. The earthquake struck approximately 84 km SSE of the city of Laoag (pop: 102,000) and 15 km NE of San Ramon (pop: 4,000), see map below. EMSC reports the earthquake originated at a depth of 10 kilometers. At the time of writing the earthquake caused at least 2 deaths and dozens of injuries have been reported.

Map showing the Philippines earthquake location.

The tectonics of the region are complex and prone to large earthquakes. Luzon is on the Philippines sea-plate which is bounded to the East and West by subduction zones. According to the USGS the region experiences high seismicity rates and since 1970, 11 other earthquakes of magnitude 6.5 or larger have occurred within 250 km of the July 27, 2022 earthquake. The largest of these earthquakes occurred in 1990 (M7.7) and killed more than 1,600 people.

The event was recorded by seismic stations worldwide, including stations in the Irish National Seismic Network (INSN), see figure below.

The M7.0 Philippines earthquake as recorded by the INSN seismometers in Ireland.

More information is available at the following resources:



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
All stations here
ITIP - N. Tipperary
IMAY - Mayo