Light earthquake, 4 mag strikes near Willow in Alaska

A light earthquake with magnitude 4 (ml/mb) was detected on Tuesday, 68 km W of Willow, Alaska (42 miles). The 4-magnitude earthquake has occurred at 10:47:31 / 10:47 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: ak0201amn3cu. Event ids that are associated: ak0201amn3cu. The earthquake occurred at a depth of 66.1 km (41 miles). Global date and time of event UTC/GMT: 28/01/20 / 2020-01-28 19:47:31 / January 28, 2020 @ 7:47 pm. Exact location of event, longitude -151.3249 West, latitude 61.6983 North, depth = 66.1 km.

Each year there are an estimated 13,000 light quakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days nine, in the past 30 days twelve and in the last 365 days one hundred and twenty earthquakes of magnitude 3.0 or greater that have been detected nearby.

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: 68 km W of Willow, Alaska.

Alaska Willow

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Parameter	Value	Description
Magnitude	4 mb	The magnitude for the event.
Longitude	-151.3249° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	61.6983° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	66.1 km	Depth of the event in kilometers.
Place	68km W of Willow, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2020-01-28 19:47:31	Time when the event occurred. UTC/GMT
Updated	2020-01-28 19:56:09	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	246	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	0.56 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	ak0201amn3cu	Id of event.
Event Code	0201amn3cu	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak0201amn3cu,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4 mag strikes near Willow in Alaska

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