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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.4 mag has occurred near Merizo Village in Guam


Earthquake location 12.9162S, 143.2532WA light earthquake with magnitude 4.4 (ml/mb) was reported 158 km WSW of Merizo Village, Guam (98 miles) on Sunday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude 143.2532 East, latitude 12.9162 North, depth = 201.838 km. The earthquake was roughly at a depth of 201.838 km (125 miles). The temblor was picked up at 09:28:55 / 9:28 am (local time epicenter). Event id: us6000rm5a. Ids that are associated to the earthquake: us6000rm5a. Exact time and date of event in UTC/GMT: 19/10/25 / 2025-10-19 09:28:55 / October 19, 2025 @ 9:28 am.

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

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 158 km WSW of Merizo Village, Guam. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 143.2532° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 12.9162° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 201.838 km Depth of the event in kilometers.
Place 158 km WSW of Merizo 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 2025-10-19 09:28:55 Time when the event occurred. UTC/GMT
Updated 2025-11-12 14:08:46 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 298 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 65 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.709 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.43 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 115 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 us6000rm5a Id of event.
Event Code 6000rm5a An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000rm5a, A comma-separated list of event ids that are associated to an event.

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