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Light earthquake, 4.8 mag strikes near Amatignak Island in Alaska


Earthquake location 51.4171S, -178.676WA light earthquake magnitude 4.8 (ml/mb) has struck on Sunday, 34 km ENE of Amatignak Island, Alaska (21 miles). The 4.8-magnitude earthquake was detected at 17:54:05 / 5:54 pm (local time epicenter). The earthquake occurred at a depth of 13.2 km (8 miles) below the earth’s surface. A tsunami warning has been issued near Amatignak Island in Alaska (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -178.676 West, latitude 51.4171 North, depth = 13.2 km. Exact time and date of event in UTC/GMT: 09/09/19 / 2019-09-09 03:54:05 / September 9, 2019 @ 3:54 am. Unique identifier: ak019bktjc2x. Ids that are associated to the event: at00pxjpi1, ak019bktjc2x.

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

Did you feel the quake?

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: 34 km ENE of Amatignak Island, Alaska.

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More information

Parameter Value Description
Magnitude 4.8 mb The magnitude for the event.
Longitude -178.676° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.4171° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 13.2 km Depth of the event in kilometers.
Place 34km ENE 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 2019-09-09 03:54:05 Time when the event occurred. UTC/GMT
Updated 2019-09-09 04:06:42 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 reviewed Indicates whether the event has been reviewed by a human.
Tsunami 1 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 354 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 ,at,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 0.67 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 ak019bktjc2x Id of event.
Event Code 019bktjc2x An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00pxjpi1,ak019bktjc2x, A comma-separated list of event ids that are associated to an event.

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