Light earthquake 4 mag, 82 km NNE of Adak, Alaska

A light earthquake with magnitude 4 (ml/mb) was detected on Monday, 82 km NNE of Adak, Alaska (51 miles). The earthquake occurred at a depth of 218.08 km (136 miles). 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: 23/01/17 / 2017-01-23 23:42:39 / January 23, 2017 @ 11:42 pm. Id of earthquake: us10007vjw. Event ids that are associated: ak15139937, us10007vjw. Exact location of event, depth 218.08 km, -176.1157° West, 52.538° North. The 4-magnitude earthquake has occurred at 11:42:39 / 11:42 am (local time epicenter).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Every year there are an estimated 13,000 light earthquakes in the world. 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 sixty earthquakes of magnitude 3.0 or greater that has occurred nearby.

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Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 82 km NNE of Adak, Alaska. This data comes from the USGS Earthquake Notification Service.

Adak Alaska

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Parameter	Value	Description
Magnitude	4 mb	The magnitude for the event.
Longitude	-176.1157° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	52.538° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	218.08 km	Depth of the event in kilometers.
Place	82km NNE of Adak, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2017-01-23 23:42:39	Time when the event occurred. UTC/GMT
Updated	2017-01-30 23:03:09	Time when the event was most recently updated. UTC/GMT
Timezone offset	-720	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	246	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	us	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	0.446	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.09 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	142	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	mb	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	us10007vjw	Id of event.
Event Code	10007vjw	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak15139937,us10007vjw,	A comma-separated list of event ids that are associated to an event.

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Light earthquake 4 mag, 82 km NNE of Adak, Alaska

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