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Minor earthquake: M3 quake has struck near Chiniak in Alaska

Earthquake location 56.3015S, -149.354WA minor earthquake with magnitude 3 (ml/mb) was reported 230 km SE of Chiniak, Alaska (143 miles) on Friday. The earthquake was roughly at a depth of 22.84 km (14 miles). Exact location of event, longitude -149.354 West, latitude 56.3015 North, depth = 22.84 km. The temblor was reported at 08:53:20 / 8:53 am (local time epicenter). Date and time of earthquake in UTC/GMT: 10/07/20 / 2020-07-10 08:53:20 / July 10, 2020 @ 8:53 am. Id of earthquake: us7000apuc. Event ids that are associated: ak0208to9i1o, us7000apuc.

In the past 24 hours, there have been eight, in the last 10 days nine, in the past 30 days nineteen and in the last 365 days two hundred and ninety-one earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. Every year there are an estimated 130,000 minor earthquakes in the world.

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 230 km SE of Chiniak, Alaska.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -149.354° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.3015° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 22.84 km Depth of the event in kilometers.
Place 230 km SE of Chiniak, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-07-10 08:53:20 Time when the event occurred. UTC/GMT
Updated 2020-07-26 09:48:00 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 138 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 2.306 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.68 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 ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us7000apuc Id of event.
Event Code 7000apuc An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak0208to9i1o,us7000apuc, A comma-separated list of event ids that are associated to an event.

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