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Light earthquake: M4.1 quake has struck near Big Lake in Alaska

Posted by admin on September 10, 2020 0 Comments

A light earthquake magnitude 4.1 (ml/mb) has struck on Thursday, 9 kilometers (6 miles) from Big Lake in Alaska. Exact location, longitude -149.946° West, latitude 61.44° North, depth = 17 km. The temblor was reported at 02:17:59 / 2:17 am (local time epicenter). A tsunami warning has been issued near Big Lake in Alaska (Does not indicate if a tsunami actually did or will exist). Global date and time of event UTC/GMT: 10/09/20 / 2020-09-10 02:17:59 / September 10, 2020 @ 2:17 am. Unique identifier: at00qgf7pz. Ids that are associated to the event: at00qgf7pz. The epicenter was at a depth of 17 km (11 miles).

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Palmer, Gateway, Lakes. Event epicenter was 25 km (15 miles) from Anchorage (c. 291 800 pop), 24 km (15 miles) from Eagle River (c. 24 800 pop), 20 km (12 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), 31 km (19 miles) from Wasilla (c. 7 800 pop). Nearby country/countries that might be effected, United States (c. 310 233 000 pop).

Each year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days three and in the last 365 days seventy-seven earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 4.0 to 5.0 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 S of Big Lake, Alaska.

Alaska Anchorage Big Lake Eagle River Gateway Knik-Fairview Lakes Palmer Tanaina United States Wasilla

More information

Parameter	Value	Description
Magnitude	4.1 mb	The magnitude for the event.
Longitude	-149.946° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	61.44° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	17 km	Depth of the event in kilometers.
Place	9 km S 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	2020-09-10 02:17:59	Time when the event occurred. UTC/GMT
Updated	2020-09-10 02:22:55	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt	13	The total number of felt reports
CDI	4.3	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	1	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	264	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	at	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,at,	A comma-separated list of network contributors.
Number of Stations Used	43	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.3242918	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.98 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	57.599995392	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	at00qgf7pz	Id of event.
Event Code	00qgf7pz	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,at00qgf7pz,	A comma-separated list of event ids that are associated to an event.

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Light earthquake: M4.1 quake has struck near Big Lake in Alaska

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