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Minor World Earthquakes Magnitude -3.9

Minor earthquake: M3.6 quake has struck near Attu Station in Alaska

Earthquake location 52.1476S, 174.9858WA minor earthquake magnitude 3.6 (ml/mb) has occurred on Saturday, 144 km ESE of Attu Station, Alaska (89 miles). Exact location of earthquake, longitude 174.9858 East, latitude 52.1476 North, depth = 75.83 km. The earthquake occurred at a depth of 75.83 km (47 miles). The 3.6-magnitude earthquake was detected at 11:30:17 / 11:30 am (local time epicenter). Global time and date of event 22/08/20 / 2020-08-22 11:30:17 / August 22, 2020 @ 11:30 am UTC/GMT. All ids that are associated to the event: ak020asu0ulw, us7000bm8k. Unique identifier: us7000bm8k.

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

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 144 km ESE of Attu Station, Alaska.

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More information

Parameter Value Description
Magnitude 3.6 mb The magnitude for the event.
Longitude 174.9858° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.1476° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 75.83 km Depth of the event in kilometers.
Place 144 km ESE of Attu Station, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-08-22 11:30:17 Time when the event occurred. UTC/GMT
Updated 2020-09-19 07:18:11 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 199 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 0.795 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.48 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 213 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 us7000bm8k Id of event.
Event Code 7000bm8k An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak020asu0ulw,us7000bm8k, A comma-separated list of event ids that are associated to an event.

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