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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.9 mag has occurred near Big Lake in Alaska


Earthquake location 61.4091S, -150.034WA minor earthquake magnitude 3.9 (ml/mb) has struck on Saturday, 5 kilometers (3 miles) from Big Lake in Alaska. The 3.9-magnitude earthquake was detected at 22:03:35 / 10:03 pm (local time epicenter). The earthquake occurred at a depth of 21.3 km (13 miles) below the earth’s surface. Unique identifier: ak20472905. Ids that are associated to the event: ak20472905, us1000i5a1. Exact location of event, longitude -150.034 West, latitude 61.4091 North, depth = 21.3 km. Global date and time of event UTC/GMT: 09/12/18 / 2018-12-09 07:03:35 / December 9, 2018 @ 7:03 am.

Event epicenter was 22 km (14 miles) from Anchorage (c. 291 800 pop), 27 km (17 miles) from Eagle River (c. 24 800 pop), 26 km (16 miles) from Knik-Fairview (c. 14 900 pop), 44 km (28 miles) from Lakes (c. 8 400 pop), 40 km (25 miles) from Tanaina (c. 8 200 pop), 37 km (23 miles) from Wasilla (c. 7 800 pop). Nearest cities/city/villages to epicentrum/hypocenter was Palmer, Gateway, Lakes (min 5000 pop). Country/countries that might be effected, United States (c. 310 233 000 pop).

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. Each year there are an estimated 130,000 minor quakes in the world. In the past 24 hours, there have been twelve, in the last 10 days three hundred and sixty-four, in the past 30 days three hundred and sixty-six and in the last 365 days four hundred and nineteen earthquakes of magnitude 3.0 or greater that was reported nearby.

How would you describe the shaking?

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: 5 km SSW of Big Lake, Alaska.

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More information

Parameter Value Description
Magnitude 3.9 mb The magnitude for the event.
Longitude -150.034° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 61.4091° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 21.3 km Depth of the event in kilometers.
Place 5km 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 2018-12-09 07:03:35 Time when the event occurred. UTC/GMT
Updated 2018-12-09 07:22:35 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 Timezone offset from UTC in minutes at the event epicenter.
Felt 37 The total number of felt reports
CDI 3.4 The maximum reported intensity for the event.
MMI 4.42 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 247 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,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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.82 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 ak20472905 Id of event.
Event Code 20472905 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak20472905,us1000i5a1, A comma-separated list of event ids that are associated to an event.

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