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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.9 quake has struck near Piti Village in Guam

Earthquake location 13.8803S, 143.9345WA light earthquake with magnitude 4.9 (ml/mb) was reported 94 kilometers (58 miles) from Piti Village in Guam on Friday. Id of earthquake: us20008l52. Event ids that are associated: us20008l52. The earthquake occurred at a depth of 157.06 km (98 miles). Date and time of earthquake in UTC/GMT: 09/02/17 / 2017-02-09 15:05:07 / February 9, 2017 @ 3:05 pm. The temblor was picked up at 01:05:07 / 1:05 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude 143.9345 East, latitude 13.8803 North, depth = 157.06 km.

Nearby country/countries, Guam (c. 159 000 pop) (That might be effected). Event epicenter was 101 km (63 miles) from Tamuning-Tumon-Harmon Village (c. 19 700 pop), 97 km (60 miles) from Santa Rita Village (c. 7 500 pop), 102 km (64 miles) from Mongmong-Toto-Maite Village (c. 6 800 pop), 101 km (63 miles) from Chalan Pago-Ordot Village (c. 6 800 pop), 95 km (59 miles) from Agat Village (c. 5 700 pop), 99 km (62 miles) from Agana Heights Village (c. 3 900 pop), 100 km (62 miles) from Sinajana Village (c. 2 900 pop). Closest city/cities/towns to epicentrum/hypocenter was Mongmong-Toto-Maite Village, Umatac Village, Tamuning-Tumon-Harmon Village (min 5000 pop).

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

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 94 km WNW of Piti Village, Guam.

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More information

Parameter Value Description
Magnitude 4.9 mb The magnitude for the event.
Longitude 143.9345° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 13.8803° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 157.06 km Depth of the event in kilometers.
Place 94km WNW 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 2017-02-09 15:05:07 Time when the event occurred. UTC/GMT
Updated 2017-03-01 22:03:29 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 369 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 0.952 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.41 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 256 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 us20008l52 Id of event.
Event Code 20008l52 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20008l52, A comma-separated list of event ids that are associated to an event.

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