Minor earthquake: M3.3 quake has struck near Big Lake in Alaska

A minor earthquake magnitude 3.3 (ml/mb) has struck on Friday, 9 kilometers (6 miles) from Big Lake in Alaska. The earthquake was roughly at a depth of 43.9 km (27 miles). The temblor was picked up at 08:49:43 / 8:49 am (local time epicenter). Exact location, longitude -149.8996° West, latitude 61.441° North, depth = 43.9 km. Event ids that are associated to the earthquake: ak20420683. Id of event: ak20420683. Date and time of earthquake in UTC/GMT: 30/11/18 / 2018-11-30 17:49:43 / November 30, 2018 @ 5:49 pm.

Close country/countries, United States (c. 310 233 000 pop) (That might be effected). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Palmer, Gateway, Lakes. Event epicenter was 25 km (15 miles) from Anchorage (c. 291 800 pop), 22 km (14 miles) from Eagle River (c. 24 800 pop), 18 km (11 miles) from Knik-Fairview (c. 14 900 pop), 36 km (23 miles) from Lakes (c. 8 400 pop), 32 km (20 miles) from Tanaina (c. 8 200 pop).

Every year there are an estimated 130,000 minor earthquakes in the world. In the past 24 hours, there have been eighty-four, in the last 10 days eighty-five, in the past 30 days eighty-six and in the last 365 days one hundred and fourty-six earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage.

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 9 km SSE of Big Lake, Alaska.

More information

Parameter	Value	Description
Magnitude	3.3 mb	The magnitude for the event.
Longitude	-149.8996° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	61.441° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	43.9 km	Depth of the event in kilometers.
Place	9km SSE 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 17:49:43	Time when the event occurred. UTC/GMT
Updated	2018-12-01 00:57:18	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		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	168	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	0.62 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	ak20420683	Id of event.
Event Code	20420683	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak20420683,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.3 quake has struck near Big Lake in Alaska

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