Minor earthquake: M3.7 quake has struck near Chernabura Island in Alaska

A minor earthquake with magnitude 3.7 (ml/mb) was reported 69 km SSW of Chernabura Island, Alaska (43 miles) on Friday. The 3.7-magnitude earthquake has occurred at 22:57:55 / 10:57 pm (local time epicenter). Exact location of earthquake, longitude -159.8784 West, latitude 54.1898 North, depth = 20.85 km. Exact time and date of earthquake 31/03/18 / 2018-03-31 09:57:55 / March 31, 2018 @ 9:57 am UTC/GMT. Event id: us1000dbuq. Ids that are associated to the earthquake: us1000dbuq. The earthquake occurred at a depth of 20.85 km (13 miles) below the earth’s surface.

Every year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 3.0 to 4.0 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 two and in the last 365 days fifty-two earthquakes of magnitude 3.0 or greater that was reported nearby.

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Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 69 km SSW of Chernabura Island, Alaska. This information comes from the USGS Earthquake Notification Service.

Alaska Chernabura Island

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Parameter	Value	Description
Magnitude	3.7 mb	The magnitude for the event.
Longitude	-159.8784° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	54.1898° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	20.85 km	Depth of the event in kilometers.
Place	69km SSW of Chernabura Island, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2018-03-31 09:57:55	Time when the event occurred. UTC/GMT
Updated	2018-03-31 10:15:13	Time when the event was most recently updated. UTC/GMT
Timezone offset	-660	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	211	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	0.664	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.99 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	203	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	us1000dbuq	Id of event.
Event Code	1000dbuq	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us1000dbuq,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.7 quake has struck near Chernabura Island in Alaska

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