Light earthquake 4.6 mag, 23 km ESE of Unalaska, Alaska

A light earthquake magnitude 4.6 (ml/mb) strikes 23 km ESE of Unalaska, Alaska (14 miles) on Thursday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 15/11/18 / 2018-11-15 18:13:25 / November 15, 2018 @ 6:13 pm UTC/GMT. Exact location of earthquake, longitude -166.2119 West, latitude 53.7951 North, depth = 73.4 km. The 4.6-magnitude earthquake has occurred at 08:13:25 / 8:13 am (local time epicenter). All ids that are associated to the event: ak20362290. Unique identifier: ak20362290. The earthquake occurred at a depth of 73.4 km (46 miles).

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

Questions or comments?

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 23 km ESE of Unalaska, Alaska.

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Parameter	Value	Description
Magnitude	4.6 mb	The magnitude for the event.
Longitude	-166.2119° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	53.7951° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	73.4 km	Depth of the event in kilometers.
Place	23km ESE of Unalaska, Alaska	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2018-11-15 18:13:25	Time when the event occurred. UTC/GMT
Updated	2018-11-15 18:37:23	Time when the event was most recently updated. UTC/GMT
Timezone offset	-600	Timezone offset from UTC in minutes at the event epicenter.
Felt	1	The total number of felt reports
CDI	3.1	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	326	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	0.39 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	ak20362290	Id of event.
Event Code	20362290	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,ak20362290,	A comma-separated list of event ids that are associated to an event.

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Light earthquake 4.6 mag, 23 km ESE of Unalaska, Alaska

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