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Light earthquake 4.8 mag, 66 km E of Yigo Village, Guam

Posted by admin on September 20, 2025 0 Comments

Earthquake location 13.6261S, 145.4957WA light earthquake magnitude 4.8 (ml/mb) has occurred on Saturday, 66 kilometers (41 miles) from Yigo Village in Guam. Exact location, longitude 145.4957° East, latitude 13.6261° North, depth = 37.62 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). All ids that are associated to the event: us7000qxiq. Unique identifier: us7000qxiq. Global time and date of event 20/09/25 / 2025-09-20 06:49:35 / September 20, 2025 @ 6:49 am UTC/GMT. The temblor was detected at 06:49:35 / 6:49 am (local time epicenter). The earthquake occurred at a depth of 37.62 km (23 miles).

Earthquake epicenter was 72 km (45 miles) from Dededo Village (c. 44 900 pop), 66 km (41 miles) from Yigo Village (c. 20 500 pop), 79 km (49 miles) from Tamuning-Tumon-Harmon Village (c. 19 700 pop), 78 km (48 miles) from Mangilao Village (c. 15 200 pop), 77 km (48 miles) from Barrigada Village (c. 8 900 pop), 93 km (58 miles) from Santa Rita Village (c. 7 500 pop), 79 km (49 miles) from Mongmong-Toto-Maite Village (c. 6 800 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Merizo Village, Umatac Village, Agat Village. Close country/countries that might be effected, Guam (c. 159 000 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light earthquakes in the world each year. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days three and in the last 365 days eighty-seven earthquakes of magnitude 3.0 or greater that have been detected nearby.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 66 km E of Yigo Village, Guam. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.8 mb The magnitude for the event.
Longitude 145.4957° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 13.6261° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 37.62 km Depth of the event in kilometers.
Place 66 km E of Yigo 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 2025-09-20 06:49:35 Time when the event occurred. UTC/GMT
Updated 2025-09-20 07:05:03 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt 3 The total number of felt reports
CDI 2.9 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 355 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 41 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.611 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.61 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 87 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 us7000qxiq Id of event.
Event Code 7000qxiq An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000qxiq, A comma-separated list of event ids that are associated to an event.

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