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Minor earthquake 2.8 mag, 40 km ESE of Atka, Alaska

Earthquake location 52.1077S, -173.6324WA minor earthquake with magnitude 2.8 (ml/mb) was reported 40 km ESE of Atka, Alaska (25 miles) on Sunday. The 2.8-magnitude earthquake has occurred at 18:14:42 / 6:14 pm (local time epicenter). All ids that are associated to the event: ak16822818, us2000alj0. Unique identifier: us2000alj0. Exact location of event, depth 167.83 km, -173.6324° West, 52.1077° North. The earthquake occurred at a depth of 167.83 km (104 miles) below the earth’s surface. Exact time and date of earthquake 04/09/17 / 2017-09-04 04:14:42 / September 4, 2017 @ 4:14 am UTC/GMT.

Each year there are an estimated 1,300,000 minor quakes in the world. In the past 24 hours, there have been eight, in the last 10 days eleven, in the past 30 days fourteen and in the last 365 days one hundred and thirty-three earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

Did you feel anything?

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: 40 km ESE of Atka, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.8 mb The magnitude for the event.
Longitude -173.6324° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.1077° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 167.83 km Depth of the event in kilometers.
Place 40km ESE of Atka, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-09-04 04:14:42 Time when the event occurred. UTC/GMT
Updated 2017-09-20 05:34:59 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 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 121 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 0.332 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.35 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 200 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 us2000alj0 Id of event.
Event Code 2000alj0 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak16822818,us2000alj0, A comma-separated list of event ids that are associated to an event.

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