Light earthquake, 4.2 mag strikes near Kodiak in Alaska

A light earthquake magnitude 4.2 (ml/mb) has struck on Tuesday, 268 km SSE of Kodiak, Alaska (167 miles). Unique identifier: ak18191568. Ids that are associated to the event: ak18191568, us2000cnhg. Exact location, longitude -150.1601° West, latitude 56.2607° North, depth = 8.3 km. Global time and date of event 23/01/18 / 2018-01-23 23:59:46 / January 23, 2018 @ 11:59 pm UTC/GMT. The earthquake occurred at a depth of 8.3 km (5 miles). The temblor was picked up at 13:59:46 / 1:59 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

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

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. 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: 268 km SSE of Kodiak, Alaska.

Alaska Kodiak

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Parameter	Value	Description
Magnitude	4.2 mb	The magnitude for the event.
Longitude	-150.1601° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	56.2607° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	8.3 km	Depth of the event in kilometers.
Place	268km SSE 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 23:59:46	Time when the event occurred. UTC/GMT
Updated	2018-01-24 00:44:27	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	reviewed	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,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	0.87 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	ak18191568	Id of event.
Event Code	18191568	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak18191568,us2000cnhg,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.2 mag strikes near Kodiak in Alaska

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