Minor earthquake, 2.8 mag strikes near Big Lake in Alaska

A minor earthquake with magnitude 2.8 (ml/mb) was reported 8 kilometers (5 miles) from Big Lake in Alaska on Friday. The 2.8-magnitude earthquake was detected at 21:20:22 / 9:20 pm (local time epicenter). Unique identifier: us1000hzae. Ids that are associated to the event: us1000hzae. Date and time of earthquake in UTC/GMT: 01/12/18 / 2018-12-01 06:20:22 / December 1, 2018 @ 6:20 am. The earthquake was roughly at a depth of 30.31 km (19 miles). Exact location of event, longitude -149.8745 West, latitude 61.4569 North, depth = 30.31 km.

Nearest cities/city/towns to hypocenter/epicentrum was Palmer, Gateway, Lakes (min 5000 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop). Earthquake epicenter was 27 km (17 miles) from Anchorage (c. 291 800 pop), 22 km (14 miles) from Eagle River (c. 24 800 pop), 16 km (10 miles) from Knik-Fairview (c. 14 900 pop), 34 km (21 miles) from Lakes (c. 8 400 pop), 30 km (19 miles) from Tanaina (c. 8 200 pop).

Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. In the past 24 hours, there have been one hundred and sixty-seven, in the last 10 days one hundred and sixty-eight, in the past 30 days one hundred and sixty-nine and in the last 365 days two hundred and twenty-nine earthquakes of magnitude 3.0 or greater that have been detected in the same area. Each year there are an estimated 1,300,000 minor earthquakes in the world.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 8 km SSE of Big Lake, Alaska.

More information

Parameter	Value	Description
Magnitude	2.8 mb	The magnitude for the event.
Longitude	-149.8745° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	61.4569° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	30.31 km	Depth of the event in kilometers.
Place	8km 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	2018-12-01 06:20:22	Time when the event occurred. UTC/GMT
Updated	2018-12-02 06:10:47	Time when the event was most recently updated. UTC/GMT
Timezone offset	-540	Timezone offset from UTC in minutes at the event epicenter.
Felt	23	The total number of felt reports
CDI	8	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	139	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	0.319	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.58 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	42	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	us1000hzae	Id of event.
Event Code	1000hzae	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us1000hzae,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 2.8 mag strikes near Big Lake in Alaska

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