Light earthquake 4.2 mag, 147 km ENE of Chirikof Island, Alaska

A light earthquake with magnitude 4.2 (ml/mb) was reported 147 km ENE of Chirikof Island, Alaska (91 miles) on Friday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global date and time of event UTC/GMT: 24/03/18 / 2018-03-24 06:00:06 / March 24, 2018 @ 6:00 am. The earthquake was roughly at a depth of 18.2 km (11 miles). The temblor was detected at 20:00:06 / 8:00 pm (local time epicenter). Exact location of event, depth 18.2 km, -153.3576° West, 56.1988° North. Id of earthquake: ak18747461. Event ids that are associated: ak18747461, us1000d8ia.

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

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What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 147 km ENE of Chirikof Island, Alaska. This information comes from the USGS Earthquake Notification Service.

Chirik

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Parameter	Value	Description
Magnitude	4.2 mb	The magnitude for the event.
Longitude	-153.3576° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	56.1988° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	18.2 km	Depth of the event in kilometers.
Place	147km ENE of Chirikof Island, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2018-03-24 06:00:06	Time when the event occurred. UTC/GMT
Updated	2018-03-24 06:13:50	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,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	0.77 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	ak18747461	Id of event.
Event Code	18747461	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak18747461,us1000d8ia,	A comma-separated list of event ids that are associated to an event.

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Light earthquake 4.2 mag, 147 km ENE of Chirikof Island, Alaska

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