Minor earthquake, 3.1 mag has occurred near Big Lake in Alaska

A minor earthquake with magnitude 3.1 (ml/mb) was detected on Friday, 10 kilometers (6 miles) from Big Lake in Alaska. The epicenter was at a depth of 45.11 km (28 miles). The temblor was detected at 13:50:47 / 1:50 pm (local time epicenter). Unique identifier: us1000hyws. Ids that are associated to the event: us1000hyws. Global date and time of event UTC/GMT: 30/11/18 / 2018-11-30 22:50:47 / November 30, 2018 @ 10:50 pm. Exact location of earthquake, longitude -149.9426 West, latitude 61.4264 North, depth = 45.11 km.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Palmer, Gateway, Lakes. Country/countries that might be effected, United States (c. 310 233 000 pop). Epicenter of the earthquake was 23 km (14 miles) from Anchorage (c. 291 800 pop), 23 km (14 miles) from Eagle River (c. 24 800 pop), 21 km (13 miles) from Knik-Fairview (c. 14 900 pop), 39 km (24 miles) from Lakes (c. 8 400 pop), 35 km (22 miles) from Tanaina (c. 8 200 pop).

Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. In the past 24 hours, there have been one hundred and twenty-eight, in the last 10 days one hundred and twenty-nine, in the past 30 days one hundred and thirty and in the last 365 days one hundred and eighty-nine earthquakes of magnitude 3.0 or greater that have been detected in the same area. Each year there are an estimated 130,000 minor quakes in the world.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 10 km S of Big Lake, Alaska.

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Parameter	Value	Description
Magnitude	3.1 mb	The magnitude for the event.
Longitude	-149.9426° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	61.4264° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	45.11 km	Depth of the event in kilometers.
Place	10km S of Big Lake, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2018-11-30 22:50:47	Time when the event occurred. UTC/GMT
Updated	2018-12-01 05:59:49	Time when the event was most recently updated. UTC/GMT
Timezone offset	-540	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	2.64	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	148	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	0.338	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.79 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	38	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	ml	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	us1000hyws	Id of event.
Event Code	1000hyws	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us1000hyws,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.1 mag has occurred near Big Lake in Alaska

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