Moderate earthquake, 5.1 mag strikes near Big Lake in Alaska

A moderate earthquake magnitude 5.1 (ml/mb) has struck on Friday, 1 kilometers (1 miles) from Big Lake in Alaska. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, -149.9412° West, 61.505° North, depth 43.5 km. Unique identifier: ak20421672. Ids that are associated to the event: ak20421672. Exact time and date of earthquake 01/12/18 / 2018-12-01 07:07:38 / December 1, 2018 @ 7:07 am UTC/GMT. The earthquake occurred at a depth of 43.5 km (27 miles). The 5.1-magnitude earthquake was detected at 22:07:38 / 10:07 pm (local time epicenter).

Earthquake epicenter was 32 km (20 miles) from Anchorage (c. 291 800 pop), 28 km (18 miles) from Eagle River (c. 24 800 pop), 18 km (11 miles) from Knik-Fairview (c. 14 900 pop), 35 km (22 miles) from Lakes (c. 8 400 pop), 30 km (19 miles) from Tanaina (c. 8 200 pop), 28 km (17 miles) from Wasilla (c. 7 800 pop), 22 km (14 miles) from Meadow Lakes (c. 7 600 pop). Close country/countries, United States (c. 310 233 000 pop) (That might be effected). Nearest cities/city/villages to epicentrum/hypocenter was Palmer, Gateway, Lakes (min 5000 pop).

Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. In the past 24 hours, there have been one hundred and eighteen, in the last 10 days one hundred and nineteen, in the past 30 days one hundred and twenty and in the last 365 days one hundred and eighty-two earthquakes of magnitude 3.0 or greater that was reported nearby. Each year there are an estimated 1320 moderate quakes in the world.

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 1 km SSE of Big Lake, Alaska.

More information

Parameter	Value	Description
Magnitude	5.1 mb	The magnitude for the event.
Longitude	-149.9412° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	61.505° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	43.5 km	Depth of the event in kilometers.
Place	1km 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 07:07:38	Time when the event occurred. UTC/GMT
Updated	2018-12-01 07:32:40	Time when the event was most recently updated. UTC/GMT
Timezone offset	-540	Timezone offset from UTC in minutes at the event epicenter.
Felt	99	The total number of felt reports
CDI	5.7	The maximum reported intensity for the event.
MMI	3.86	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	457	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	0.55 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	ak20421672	Id of event.
Event Code	20421672	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak20421672,	A comma-separated list of event ids that are associated to an event.

Parameter

Value

Description

Magnitude

5.1 mb

The magnitude for the event.

Longitude

-149.9412° West

Decimal degrees longitude. Negative values for western longitudes.

Latitude

61.505° North

Decimal degrees latitude. Negative values for southern latitudes.

Depth

43.5 km

Depth of the event in kilometers.

Place

1km 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 07:07:38

Time when the event occurred. UTC/GMT

Updated

2018-12-01 07:32:40

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

5.7

The maximum reported intensity for the event.

MMI

3.86

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

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

457

A number describing how significant the event is. Larger numbers indicate a more significant event.

Network

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

0.55 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

The method or algorithm used to calculate the preferred magnitude for the event.

Event Type

earthquake

Type of seismic event.

Event ID

ak20421672

Id of event.

Event Code

20421672

An identifying code assigned by, and unique from, the corresponding source for the event.

Event IDS

,ak20421672,

A comma-separated list of event ids that are associated to an event.

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Moderate earthquake, 5.1 mag strikes near Big Lake in Alaska

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