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Minor earthquake: M2.9 quake has struck near Tanaga Volcano in Alaska

Earthquake location 51.9842S, -177.8755WA minor earthquake with magnitude 2.9 (ml/mb) was reported 21 km ENE of Tanaga Volcano, Alaska (13 miles) on Thursday. Global date and time of event UTC/GMT: 23/01/20 / 2020-01-23 23:08:35 / January 23, 2020 @ 11:08 pm. Event ids that are associated to the earthquake: ak02012f3q1k, us70007l8u. Id of event: us70007l8u. Exact location, longitude -177.8755° West, latitude 51.9842° North, depth = 5.1 km. The earthquake was roughly at a depth of 5.1 km (3 miles). The 2.9-magnitude earthquake has occurred at 13:08:35 / 1:08 pm (local time epicenter).

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

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. 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: 21 km ENE of Tanaga Volcano, Alaska.

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More information

Parameter Value Description
Magnitude 2.9 mb The magnitude for the event.
Longitude -177.8755° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.9842° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 5.1 km Depth of the event in kilometers.
Place 21km ENE of Tanaga Volcano, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-01-23 23:08:35 Time when the event occurred. UTC/GMT
Updated 2020-02-09 01:45:34 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 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 129 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 0.109 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.46 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 240 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 us70007l8u Id of event.
Event Code 70007l8u An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak02012f3q1k,us70007l8u, A comma-separated list of event ids that are associated to an event.

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