Minor earthquake, 3.6 mag strikes near Big Lake in Alaska

A minor earthquake magnitude 3.6 (ml/mb) strikes 15 kilometers (9 miles) from Big Lake in Alaska on Friday. The temblor was detected at 09:21:39 / 9:21 am (local time epicenter). The epicenter was at a depth of 9.6 km (6 miles). Exact location of event, depth 9.6 km, -150.1033° West, 61.3976° North. Exact time and date of earthquake 30/11/18 / 2018-11-30 18:21:39 / November 30, 2018 @ 6:21 pm UTC/GMT. Event ids that are associated to the earthquake: ak20419903. Id of event: ak20419903.

Closest city/cities/towns to epicentrum/hypocenter was Palmer, Gateway, Lakes (min 5000 pop). Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Event epicenter was 23 km (14 miles) from Anchorage (c. 291 800 pop), 30 km (18 miles) from Eagle River (c. 24 800 pop), 30 km (18 miles) from Knik-Fairview (c. 14 900 pop), 48 km (30 miles) from Lakes (c. 8 400 pop), 44 km (27 miles) from Tanaina (c. 8 200 pop), 41 km (25 miles) from Wasilla (c. 7 800 pop).

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been twenty-four, in the last 10 days twenty-five, in the past 30 days twenty-six and in the last 365 days eighty-two earthquakes of magnitude 3.0 or greater that have been detected nearby. There are an estimated 130,000 minor quakes in the world each year.

Questions or comments?

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. 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: 15 km SSW of Big Lake, Alaska.

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Parameter	Value	Description
Magnitude	3.6 mb	The magnitude for the event.
Longitude	-150.1033° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	61.3976° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	9.6 km	Depth of the event in kilometers.
Place	15km SSW 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 18:21:39	Time when the event occurred. UTC/GMT
Updated	2018-11-30 20:01:04	Time when the event was most recently updated. UTC/GMT
Timezone offset	-540	Timezone offset from UTC in minutes at the event epicenter.
Felt	3	The total number of felt reports
CDI	2	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	automatic	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	200	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	ak	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,ak,	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		Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.73 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap		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	ak20419903	Id of event.
Event Code	20419903	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak20419903,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.6 mag strikes near Big Lake in Alaska

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