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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.3 quake has struck near Piti Village in Guam

Earthquake location 13.5918S, 144.6231WA light earthquake magnitude 4.3 (ml/mb) has occurred on Wednesday, 16 kilometers (10 miles) from Piti Village in Guam. Exact location of earthquake, 144.6231° East, 13.5918° North, depth 173.87 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: us6000dj1x. Id of event: us6000dj1x. The epicenter of the earthquake was roughly 173.87 km (108 miles) below the earth’s surface. The temblor was detected at 22:02:20 / 10:02 pm (local time epicenter). Exact time and date of event in UTC/GMT: 10/02/21 / 2021-02-10 22:02:20 / February 10, 2021 @ 10:02 pm.

Country/countries that might be effected, Guam (c. 159 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Inarajan Village, Merizo Village, Umatac Village (min 5000 pop). The epicenter was 25 km (15 miles) from Dededo Village (c. 44 900 pop), 29 km (18 miles) from Yigo Village (c. 20 500 pop), 21 km (13 miles) from Tamuning-Tumon-Harmon Village (c. 19 700 pop), 25 km (16 miles) from Mangilao Village (c. 15 200 pop), 23 km (15 miles) from Barrigada Village (c. 8 900 pop), 23 km (15 miles) from Santa Rita Village (c. 7 500 pop).

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

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage 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: 16 km NNW of Piti Village, Guam.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 144.6231° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 13.5918° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 173.87 km Depth of the event in kilometers.
Place 16 km NNW of Piti 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 2021-02-10 22:02:20 Time when the event occurred. UTC/GMT
Updated 2021-02-26 00:08:45 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 284 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 0.238 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.7 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 105 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 us6000dj1x Id of event.
Event Code 6000dj1x An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000dj1x, A comma-separated list of event ids that are associated to an event.

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