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Light earthquake, 4.1 mag strikes near Unalaska in Alaska

Posted by admin on September 27, 2019 0 Comments

Earthquake location 53.4548S, -165.9252WA light earthquake magnitude 4.1 (ml/mb) strikes 61 km SE of Unalaska, Alaska (38 miles) on Thursday. The 4.1-magnitude earthquake has occurred at 21:01:44 / 9:01 pm (local time epicenter). Exact location, longitude -165.9252° West, latitude 53.4548° North, depth = 46.02 km. Global time and date of event 27/09/19 / 2019-09-27 08:01:44 / September 27, 2019 @ 8:01 am UTC/GMT. All ids that are associated to the event: us70005m9z. Unique identifier: us70005m9z. The earthquake occurred at a depth of 46.02 km (29 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

In the past 24 hours, there have been one, in the last 10 days three, in the past 30 days six and in the last 365 days eighty-four earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 13,000 light quakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

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: 61 km SE of Unalaska, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -165.9252° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 53.4548° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 46.02 km Depth of the event in kilometers.
Place 61km SE of Unalaska, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2019-09-27 08:01:44 Time when the event occurred. UTC/GMT
Updated 2019-09-27 08:16:45 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 259 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 ,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 0.687 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.15 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 us70005m9z Id of event.
Event Code 70005m9z An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70005m9z, A comma-separated list of event ids that are associated to an event.

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