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Earthquakes in Guam

In Guam there are partly large earthquakes with strengths of more than 7.0, which cause damages within a radius of over 100 kilometers. Due to the special tectonic situation of the country, there are more earthquakes than average.

Other natural hazards in Guam:
Typhoons
The most severe natural disasters worldwide


Back to overview: Guam

Most recent events

This list includes the strongest earthquakes recorded in or around Guam by the U.S. Geological Survey (USGS) in the past 14 days. Whether an event is listed here depends largely on its magnitude, but also on its distance from inhabited areas. All data refer to the local time. This page is updated daily at 11am UTC.

  • May 24, 4:45 am
    Magnitude 5.1: 99 km south-southeast of San Jose Village, Northern Mariana Islands at a depth of 81.70 km.
  • May 18, 2:29 pm
    Magnitude 5.0: 209 km southwest of Merizo Village at a depth of 10 km.
  • May 18, 1:25 pm
    Magnitude 5.4: 210 km southwest of Merizo Village at a depth of 10 km.
  • May 17, 8:50 am
    Magnitude 4.5: 294 km northeast of Fais, Micronesia at a depth of 35 km.
  • May 15, 9:09 pm
    Magnitude 5.5: south of the Mariana Islands at a depth of 19.49 km.

Earthquakes in Guam since 1950

The strongest earthquake in Guam happened on 08/08/1993 in the region Tuman Bay, Apra Harbor with a magnitude of 7.8 on the Richter scale. The earthquake also triggered a tsunami with further victims and destructions.
DateRegionDepthMagnitudeDeathsTotal damage
04/26/2002Guam7 km7.10
10/12/2001Guam16 km7.00
08/08/1993Tuman Bay, Apra Harbor24 km7.80
11/01/1975Guam33 km6.10


These statistics are based on datas from the National Geophysical Data Center / World Data Service (NGDC/WDS): Significant Earthquake Database. doi:10.7289/V5TD9V7K. Several data have been summarized and translated.
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