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Minor World Earthquakes Magnitude -3.9

Minor earthquake 3.6 mag, 53 km SSE of Yunaska Island, Alaska



Earthquake location 52.1876S, -170.413WA minor earthquake with magnitude 3.6 (ml/mb) was reported 53 km SSE of Yunaska Island, Alaska (33 miles) on Friday. Global time and date of event 23/09/17 / 2017-09-23 07:33:37 / September 23, 2017 @ 7:33 am UTC/GMT. The 3.6-magnitude earthquake has occurred at 20:33:37 / 8:33 pm (local time epicenter). The earthquake occurred at a depth of 30 km (19 miles) below the earth’s surface. Exact location, longitude -170.413° West, latitude 52.1876° North, depth = 30 km. Unique identifier: ak16880394. Ids that are associated to the event: ak16880394.

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

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 53 km SSE of Yunaska Island, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.6 mb The magnitude for the event.
Longitude -170.413° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.1876° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 30 km Depth of the event in kilometers.
Place 53km SSE of Yunaska 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 2017-09-23 07:33:37 Time when the event occurred. UTC/GMT
Updated 2017-09-27 18:31:45 Time when the event was most recently updated. UTC/GMT
Timezone offset -660 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 199 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 0.4 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 ak16880394 Id of event.
Event Code 16880394 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak16880394, A comma-separated list of event ids that are associated to an event.

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