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Minor earthquake, 3.3 mag was detected near Kodiak in Alaska



Earthquake location 56.2778S, -148.7571WA minor earthquake magnitude 3.3 (ml/mb) has occurred on Tuesday, 278 km SE of Kodiak, Alaska (173 miles). Global time and date of event 20/02/18 / 2018-02-20 19:11:06 / February 20, 2018 @ 7:11 pm UTC/GMT. The 3.3-magnitude earthquake has occurred at 09:11:06 / 9:11 am (local time epicenter). The earthquake occurred at a depth of 25.73 km (16 miles). Event ids that are associated to the earthquake: ak18472078, us2000d9dl. Id of event: us2000d9dl. Exact location, longitude -148.7571° West, latitude 56.2778° North, depth = 25.73 km.

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. In the past 24 hours, there have been four hundred and thirty-eight, in the last 10 days seven hundred and seventy-nine, in the past 30 days two thousand, seven hundred and twenty-eight and in the last 365 days two thousand, seven hundred and thirty-two earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel it?

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. 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: 278 km SE of Kodiak, Alaska.

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More information

Parameter Value Description
Magnitude 3.3 mb The magnitude for the event.
Longitude -148.7571° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.2778° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 25.73 km Depth of the event in kilometers.
Place 278km SE of Kodiak, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-02-20 19:11:06 Time when the event occurred. UTC/GMT
Updated 2018-03-17 15:38:06 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 168 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 2.579 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.54 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 182 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 us2000d9dl Id of event.
Event Code 2000d9dl An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak18472078,us2000d9dl, A comma-separated list of event ids that are associated to an event.

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