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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag was detected near Asan-Maina Village in Guam

Earthquake location 13.9026S, 144.5296WA light earthquake with magnitude 4 (ml/mb) was detected on Sunday, 51 kilometers (32 miles) from Asan-Maina Village in Guam. Event ids that are associated to the earthquake: us7000bpfp. Id of event: us7000bpfp. Exact location, longitude 144.5296° East, latitude 13.9026° North, depth = 148.45 km. Exact time and date of earthquake 13/09/20 / 2020-09-13 08:08:10 / September 13, 2020 @ 8:08 am UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 08:08:10 / 8:08 am (local time epicenter). The epicenter was at a depth of 148.45 km (92 miles).

Close country/countries that might be effected, Guam (c. 159 000 pop). Event epicenter was 54 km (34 miles) from Dededo Village (c. 44 900 pop), 56 km (35 miles) from Yigo Village (c. 20 500 pop), 54 km (33 miles) from Tamuning-Tumon-Harmon Village (c. 19 700 pop), 58 km (36 miles) from Mangilao Village (c. 15 200 pop), 56 km (35 miles) from Barrigada Village (c. 8 900 pop), 59 km (37 miles) from Santa Rita Village (c. 7 500 pop). Nearest cities/city/towns to hypocenter/epicentrum was Inarajan Village, Merizo Village, Umatac Village (min 5000 pop).

In the past 24 hours, there have been four, in the last 10 days six, in the past 30 days six and in the last 365 days fifty-four earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light quakes 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. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 51 km NNW of Asan-Maina Village, Guam.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 144.5296° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 13.9026° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 148.45 km Depth of the event in kilometers.
Place 51 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 2020-09-13 08:08:10 Time when the event occurred. UTC/GMT
Updated 2020-10-09 11:59:45 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 246 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 0.453 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.35 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 91 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 us7000bpfp Id of event.
Event Code 7000bpfp An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000bpfp, A comma-separated list of event ids that are associated to an event.

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