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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.4 quake has struck near Amatignak Island in Alaska



Earthquake location 51.2705S, -178.257WA light earthquake magnitude 4.4 (ml/mb) strikes 59 km E of Amatignak Island, Alaska (37 miles) on Tuesday. The 4.4-magnitude earthquake was detected at 19:08:57 / 7:08 pm (local time epicenter). Unique identifier: ak17223313. Ids that are associated to the event: ak17223313. Exact location of earthquake, -178.257° West, 51.2705° North, depth 32.4 km. The earthquake occurred at a depth of 32.4 km (20 miles) below the earth’s surface. Global date and time of event UTC/GMT: 15/11/17 / 2017-11-15 07:08:57 / November 15, 2017 @ 7:08 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

In the past 24 hours, there have been one, in the last 10 days three, in the past 30 days sixteen and in the last 365 days seven hundred and fifty-eight 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. Each year there are an estimated 13,000 light earthquakes 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 information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 59 km E of Amatignak Island, Alaska.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -178.257° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.2705° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 32.4 km Depth of the event in kilometers.
Place 59km E of Amatignak 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 2017-11-15 07:08:57 Time when the event occurred. UTC/GMT
Updated 2017-11-18 02:20:19 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 1.57 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 298 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 0.43 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 ak17223313 Id of event.
Event Code 17223313 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak17223313, A comma-separated list of event ids that are associated to an event.

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