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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag has occurred near Merizo Village in Guam

Earthquake location 12.6869S, 144.5277WA light earthquake magnitude 4.3 (ml/mb) strikes 65 kilometers (40 miles) from Merizo Village in Guam on Saturday. All ids that are associated to the event: us1000hde9. Unique identifier: us1000hde9. The earthquake occurred at a depth of 74.92 km (47 miles) below the earth’s surface. Exact location of earthquake, 144.5277° East, 12.6869° North, depth 74.92 km. The 4.3-magnitude earthquake has occurred at 04:36:57 / 4:36 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 12/10/18 / 2018-10-12 18:36:57 / October 12, 2018 @ 6:36 pm.

The epicenter was 93 km (58 miles) from Tamuning-Tumon-Harmon Village (c. 19 700 pop), 90 km (56 miles) from Mangilao Village (c. 15 200 pop), 92 km (57 miles) from Barrigada Village (c. 8 900 pop), 79 km (49 miles) from Santa Rita Village (c. 7 500 pop), 91 km (57 miles) from Mongmong-Toto-Maite Village (c. 6 800 pop), 88 km (55 miles) from Chalan Pago-Ordot Village (c. 6 800 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Tamuning-Tumon-Harmon Village, Barrigada Village, Mongmong-Toto-Maite Village. Close country/countries, Guam (c. 159 000 pop) (That might be effected).

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

Did you feel anything?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking 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: 65 km SSW of Merizo Village, Guam.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 144.5277° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 12.6869° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 74.92 km Depth of the event in kilometers.
Place 65km SSW 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 2018-10-12 18:36:57 Time when the event occurred. UTC/GMT
Updated 2018-11-08 20:16:18 Time when the event was most recently updated. UTC/GMT
Timezone offset 600 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 0.956 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.44 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 165 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 us1000hde9 Id of event.
Event Code 1000hde9 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000hde9, A comma-separated list of event ids that are associated to an event.

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