Light earthquake, 4.2 mag has occurred near Kodiak in Alaska

A light earthquake with magnitude 4.2 (ml/mb) was reported 241 km SE of Kodiak, Alaska (150 miles) on Tuesday. Exact location of earthquake, longitude -149.4584 West, latitude 56.3339 North, depth = 53.1 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event id: ak18176100. Ids that are associated to the earthquake: ak18176100. The 4.2-magnitude earthquake was detected at 01:13:43 / 1:13 am (local time epicenter). Global date and time of event UTC/GMT: 23/01/18 / 2018-01-23 11:13:43 / January 23, 2018 @ 11:13 am. The earthquake was roughly at a depth of 53.1 km (33 miles).

There are an estimated 13,000 light earthquakes in the world each year. In the past 24 hours, there have been sixteen, in the last 10 days sixteen, in the past 30 days sixteen and in the last 365 days twenty earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 241 km SE of Kodiak, Alaska.

Alaska Kodiak

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Parameter	Value	Description
Magnitude	4.2 mb	The magnitude for the event.
Longitude	-149.4584° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	56.3339° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	53.1 km	Depth of the event in kilometers.
Place	241km SE of Kodiak, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2018-01-23 11:13:43	Time when the event occurred. UTC/GMT
Updated	2018-01-23 12:23:20	Time when the event was most recently updated. UTC/GMT
Timezone offset	-600	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	271	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	0.89 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	ak18176100	Id of event.
Event Code	18176100	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak18176100,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.2 mag has occurred near Kodiak in Alaska

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