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Minor earthquake: M2.8 quake has struck near Big Lake in Alaska

Posted by admin on December 1, 2018 0 Comments

Earthquake location 61.4724S, -149.9923WA minor earthquake magnitude 2.8 (ml/mb) has occurred on Friday, 5 kilometers (3 miles) from Big Lake in Alaska. The earthquake occurred at a depth of 20 km (12 miles). Event id: ak20421309. Ids that are associated to the earthquake: ak20421309. Global date and time of event UTC/GMT: 01/12/18 / 2018-12-01 04:54:58 / December 1, 2018 @ 4:54 am. The temblor was reported at 19:54:58 / 7:54 pm (local time epicenter). Exact location of event, longitude -149.9923 West, latitude 61.4724 North, depth = 20 km.

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). Epicenter of the event was 29 km (18 miles) from Anchorage (c. 291 800 pop), 28 km (17 miles) from Eagle River (c. 24 800 pop), 21 km (13 miles) from Knik-Fairview (c. 14 900 pop), 39 km (24 miles) from Lakes (c. 8 400 pop), 34 km (21 miles) from Tanaina (c. 8 200 pop).

Each year there are an estimated 1,300,000 minor quakes in the world. 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 fourty-nine, in the last 10 days one hundred and fifty, in the past 30 days one hundred and fifty-one and in the last 365 days two hundred and twelve earthquakes of magnitude 3.0 or greater that was reported nearby.

Did you feel the quake?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 5 km SSW of Big Lake, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -149.9923° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 61.4724° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 20 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 2018-12-01 04:54:58 Time when the event occurred. UTC/GMT
Updated 2018-12-01 05:05:56 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 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 121 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 0.78 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 ak20421309 Id of event.
Event Code 20421309 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak20421309, A comma-separated list of event ids that are associated to an event.

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