Light earthquake, 4.2 mag was detected near Chignik Lake in Alaska

A light earthquake magnitude 4.2 (ml/mb) strikes 68 km NE of Chignik Lake, Alaska (42 miles) on Saturday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: ak15529491. Event ids that are associated: ak15529491. Global date and time of event UTC/GMT: 18/03/17 / 2017-03-18 09:01:25 / March 18, 2017 @ 9:01 am. The 4.2-magnitude earthquake was detected at 00:01:25 / 12:01 am (local time epicenter). Exact location of event, depth 103.4 km, -158.0446° West, 56.7369° North. The earthquake was roughly at a depth of 103.4 km (64 miles).

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

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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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 68 km NE of Chignik Lake, Alaska. This data comes from the USGS Earthquake Notification Service.

Alaska Chignik Lake

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Parameter	Value	Description
Magnitude	4.2 mb	The magnitude for the event.
Longitude	-158.0446° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	56.7369° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	103.4 km	Depth of the event in kilometers.
Place	68km NE of Chignik 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	2017-03-18 09:01:25	Time when the event occurred. UTC/GMT
Updated	2017-03-18 09:07:55	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	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	ak15529491	Id of event.
Event Code	15529491	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak15529491,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.2 mag was detected near Chignik Lake in Alaska

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