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Minor World Earthquakes Magnitude -3.9

Minor earthquake: M3.9 quake has struck near Atka in Alaska



Earthquake location 52.1365S, -173.7849WA minor earthquake with magnitude 3.9 (ml/mb) was detected on Monday, 29 km ESE of Atka, Alaska (18 miles). The temblor was reported at 09:31:34 / 9:31 am (local time epicenter). Exact location of earthquake, longitude -173.7849 West, latitude 52.1365 North, depth = 70.95 km. Global time and date of event 28/08/17 / 2017-08-28 19:31:34 / August 28, 2017 @ 7:31 pm UTC/GMT. The epicenter of the earthquake was roughly 70.95 km (44 miles) below the earth’s surface. Event ids that are associated to the earthquake: ak16730288, us2000adj0. Id of event: us2000adj0.

Each year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been seven, in the last 10 days ten, in the past 30 days twelve and in the last 365 days one hundred and thirty-five earthquakes of magnitude 3.0 or greater that have been detected nearby.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 29 km ESE of Atka, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.9 mb The magnitude for the event.
Longitude -173.7849° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.1365° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 70.95 km Depth of the event in kilometers.
Place 29km 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 2017-08-28 19:31:34 Time when the event occurred. UTC/GMT
Updated 2017-09-12 21:16:47 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 2.68 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 234 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 0.237 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.61 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 189 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 us2000adj0 Id of event.
Event Code 2000adj0 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak16730288,us2000adj0, A comma-separated list of event ids that are associated to an event.

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