Note: The map shows the area with a shaking intensity of 4 or greater, which the USGS defines as “mild,” although the earthquake may be felt outside the areas shown. The New York Times
A major earthquake measuring 7.4 struck the Philippine Sea on Friday, according to the United States Geological Survey.
The quake occurred at 9:43 a.m. Philippine time, about 19 km east of Santiago, Philippines, according to agency data.
As seismologists review the available data, they may revise the reported magnitude of the earthquake. Additional information collected about the earthquake could also prompt USGS scientists to update the shaking severity map.
Aftershocks in the region
An aftershock is usually a smaller earthquake that follows a larger earthquake in the same general area. Aftershocks are usually minor adjustments along the part of a fault that slipped during the initial earthquake.
Earthquakes and aftershocks within 100 miles
Aftershocks can occur days, weeks, or even years after the first earthquake. These events can be of equal or greater magnitude than the initial earthquake, and they can continue to affect already damaged sites.
When earthquakes and aftershocks happened
Source: United States Geological Survey | Notes: Agitation categories are based on the Modified Mercalli Intensity Scale. When aftershock data is available, corresponding maps and diagrams include earthquakes within 100 miles and seven days after the initial earthquake. All times above are Philippines times. Shake data is as of Thursday, October 9 at 9:56 p.m. Eastern Time. Aftershock data is as of Thursday, October 9 at 10:28 p.m. Eastern Time.
Maps: Daylight (urban areas); MapLibre (map rendering); Natural land (roads, labels, terrain); Protomaps (map tiles)
