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Minor earthquake: M3.3 quake has struck near Kodiak in Alaska



Earthquake location 55.9358S, -149.9397WA minor earthquake magnitude 3.3 (ml/mb) has occurred on Monday, 255 km SE of Kodiak, Alaska (158 miles). All ids that are associated to the event: ak18693372. Unique identifier: ak18693372. Exact time and date of earthquake 13/03/18 / 2018-03-13 04:30:18 / March 13, 2018 @ 4:30 am UTC/GMT. The epicenter of the earthquake was roughly 11.8 km (7 miles) below the earth’s surface. The 3.3-magnitude earthquake has occurred at 18:30:18 / 6:30 pm (local time epicenter). Exact location of earthquake, longitude -149.9397 West, latitude 55.9358 North, depth = 11.8 km.

Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. In the past 24 hours, there have been thirty, in the last 10 days one hundred and fourty-nine, in the past 30 days seven hundred and thirty-one and in the last 365 days two thousand, six hundred and seventy-seven earthquakes of magnitude 3.0 or greater that has struck near. Each year there are an estimated 130,000 minor earthquakes in the world.

How would you describe the shaking?

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 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: 255 km SE of Kodiak, Alaska.

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More information

Parameter Value Description
Magnitude 3.3 mb The magnitude for the event.
Longitude -149.9397° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 55.9358° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 11.8 km Depth of the event in kilometers.
Place 255km 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 2018-03-13 04:30:18 Time when the event occurred. UTC/GMT
Updated 2018-03-17 01:09:25 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 ak The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ak, 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 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 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 ak18693372 Id of event.
Event Code 18693372 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak18693372, A comma-separated list of event ids that are associated to an event.

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