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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag was detected near Inarajan Village in Guam


Earthquake location 12.9664S, 145.5158WA light earthquake magnitude 4.5 (ml/mb) has struck on Monday, 89 kilometers (55 miles) from Inarajan Village in Guam. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us7000qu41. Event ids that are associated: us7000qu41. The temblor was reported at 13:22:31 / 1:22 pm (local time epicenter). Date and time of earthquake in UTC/GMT: 11/08/25 / 2025-08-11 13:22:31 / August 11, 2025 @ 1:22 pm. The earthquake occurred at a depth of 10 km (6 miles) below the earth’s surface. Exact location of earthquake, longitude 145.5158 East, latitude 12.9664 North, depth = 10 km.

Nearby country/countries that might be effected, Guam (c. 159 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Barrigada Village, Dededo Village, Mangilao Village (min 5000 pop). Epicenter of the earthquake was 96 km (59 miles) from Dededo Village (c. 44 900 pop), 93 km (58 miles) from Yigo Village (c. 20 500 pop), 94 km (58 miles) from Mangilao Village (c. 15 200 pop), 96 km (59 miles) from Barrigada Village (c. 8 900 pop), 94 km (58 miles) from Yona Village (c. 6 500 pop), 93 km (58 miles) from Talofofo Village (c. 3 200 pop), 90 km (56 miles) from Inarajan Village (c. 3 100 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light quakes in the world. In the past 24 hours, there have been seven, in the last 10 days twenty-two, in the past 30 days twenty-six and in the last 365 days sixty-one earthquakes of magnitude 3.0 or greater that was reported nearby.

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 89 km ESE of Inarajan Village, Guam.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 145.5158° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 12.9664° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 89 km ESE of Inarajan Village, Guam Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-08-11 13:22:31 Time when the event occurred. UTC/GMT
Updated 2025-09-07 14:38:34 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status reviewed Indicates whether the event has been reviewed by a human.
Tsunami 0 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 312 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us, A comma-separated list of network contributors.
Number of Stations Used 39 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.884 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.84 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 149 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us7000qu41 Id of event.
Event Code 7000qu41 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000qu41, A comma-separated list of event ids that are associated to an event.

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