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Light earthquake: M4.6 quake has struck near Asan-Maina Village in Guam

Earthquake location 13.9776S, 144.5881WA light earthquake magnitude 4.6 (ml/mb) has struck on Monday, 57 kilometers (35 miles) from Asan-Maina Village in Guam. The temblor was detected at 23:46:56 / 11:46 pm (local time epicenter). The earthquake was roughly at a depth of 194.79 km (121 miles). Event id: us7000d3ag. Ids that are associated to the earthquake: us7000d3ag. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude 144.5881 East, latitude 13.9776 North, depth = 194.79 km. Exact time and date of event in UTC/GMT: 25/01/21 / 2021-01-25 23:46:56 / January 25, 2021 @ 11:46 pm.

Epicenter of the earthquake was 58 km (36 miles) from Dededo Village (c. 44 900 pop), 59 km (37 miles) from Yigo Village (c. 20 500 pop), 58 km (36 miles) from Tamuning-Tumon-Harmon Village (c. 19 700 pop), 63 km (39 miles) from Mangilao Village (c. 15 200 pop), 61 km (38 miles) from Barrigada Village (c. 8 900 pop), 66 km (41 miles) from Santa Rita Village (c. 7 500 pop), 60 km (38 miles) from Mongmong-Toto-Maite Village (c. 6 800 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Inarajan Village, Merizo Village, Umatac Village. Nearby country/countries that might be effected, Guam (c. 159 000 pop).

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 fifty-two earthquakes of magnitude 3.0 or greater that have been detected in the same area. Each year there are an estimated 13,000 light earthquakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel anything?

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, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 57 km NNW of Asan-Maina Village, Guam. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude 144.5881° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 13.9776° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 194.79 km Depth of the event in kilometers.
Place 57 km NNW of Asan-Maina 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 2021-01-25 23:46:56 Time when the event occurred. UTC/GMT
Updated 2021-01-26 00:27:36 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 326 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 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.472 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.82 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 66 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 us7000d3ag Id of event.
Event Code 7000d3ag An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000d3ag, A comma-separated list of event ids that are associated to an event.

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