Light earthquake: M4 quake strikes near Asan-Maina Village in Guam

A light earthquake magnitude 4 (mg/mb) has occurred on Tuesday, 48 kilometers (30 miles) from Asan-Maina Village in Guam. The temblor was reported at 14:47:47 / 2:47 pm (local time epicenter) at a depth of 159.07 km (99 miles). Global time of event 21/04/15 / 2015-04-21 04:47:47 / April 21, 2015 @ 4:47 am UTC/GMT. A tsunami warning has not been issued, according to the U.S. Geological Survey. Exact location of event, longitude 144.584 East, latitude 13.8866 North, depth 159.07 km, unique identifier, us200029vl.

Close countries, Guam (c. 159 000 pop). The epicenter was 49 km (31 miles) from Dededo Village (c. 44 900 pop), 51 km (32 miles) from Yigo Village (c. 20 500 pop), 49 km (31 miles) from Tamuning-Tumon-Harmon Village (c. 19 700 pop), 54 km (34 miles) from Mangilao Village (c. 15 200 pop), 52 km (32 miles) from Barrigada Village (c. 8 900 pop), 56 km (35 miles) from Santa Rita Village (c. 7 500 pop). Nearest city, towns to epicentrum/hypocenter was Inarajan Village, Merizo Village, Umatac Village.

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Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded in: 48 km NNW of Asan-Maina Village, Guam.

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Parameter	Value	Description
Magnitude	4 mb	The magnitude for the event.
Longitude	144.584° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	13.8866° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	159.07 km	Depth of the event in kilometers.
Place	48km 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	2015-04-21 04:47:47	Time when the event occurred. UTC/GMT
Updated	2015-05-07 02:40:28	Time when the event was most recently updated. UTC/GMT
Timezone offset	600	Timezone offset from UTC in minutes at the event epicenter.
Felt	0	The total number of felt reports
CDI	1	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	0.404	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	119	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	us200029vl	Id of event.
Event Code	200029vl	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us200029vl,	A comma-separated list of event ids that are associated to an event.

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Light earthquake: M4 quake strikes near Asan-Maina Village in Guam

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