Light earthquake: M4.8 quake has struck near Unalaska in Alaska

A light earthquake magnitude 4.8 (ml/mb) strikes 45 km SE of Unalaska, Alaska (28 miles) on Sunday. Date and time of earthquake in UTC/GMT: 30/03/20 / 2020-03-30 08:21:14 / March 30, 2020 @ 8:21 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -166.1006 West, latitude 53.5564 North, depth = 87.62 km. The temblor was detected at 23:21:14 / 11:21 pm (local time epicenter). The earthquake occurred at a depth of 87.62 km (54 miles) below the earth’s surface. All ids that are associated to the event: us70008ik0. Unique identifier: us70008ik0.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days five and in the last 365 days one hundred and four earthquakes of magnitude 3.0 or greater that has struck near. Each year there are an estimated 13,000 light quakes in the world.

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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 data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 45 km SE of Unalaska, Alaska.

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Parameter	Value	Description
Magnitude	4.8 mb	The magnitude for the event.
Longitude	-166.1006° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	53.5564° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	87.62 km	Depth of the event in kilometers.
Place	45km SE of Unalaska, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2020-03-30 08:21:14	Time when the event occurred. UTC/GMT
Updated	2020-03-30 08:43:55	Time when the event was most recently updated. UTC/GMT
Timezone offset	-540	Timezone offset from UTC in minutes at the event epicenter.
Felt	1	The total number of felt reports
CDI	3.4	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	355	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	0.376	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.26 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	136	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	us70008ik0	Id of event.
Event Code	70008ik0	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us70008ik0,	A comma-separated list of event ids that are associated to an event.

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Light earthquake: M4.8 quake has struck near Unalaska in Alaska

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