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Light earthquake 4 mag, 266 km SE of Kodiak, Alaska

Posted by admin on September 29, 2019 0 Comments

Earthquake location 56.3545S, -148.8873WA light earthquake with magnitude 4 (ml/mb) was detected on Sunday, 266 km SE of Kodiak, Alaska (165 miles). Date and time of earthquake in UTC/GMT: 29/09/19 / 2019-09-29 16:45:00 / September 29, 2019 @ 4:45 pm. The epicenter was at a depth of 21.33 km (13 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us70005nj3. Ids that are associated to the event: ak019ci3yvrl, us70005nj3. The temblor was picked up at 06:45:00 / 6:45 am (local time epicenter). Exact location of event, longitude -148.8873 West, latitude 56.3545 North, depth = 21.33 km.

In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days thirteen and in the last 365 days four hundred and twenty-nine earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Every year there are an estimated 13,000 light earthquakes in the world.

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 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: 266 km SE of Kodiak, Alaska.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -148.8873° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.3545° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 21.33 km Depth of the event in kilometers.
Place 266km 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 2019-09-29 16:45:00 Time when the event occurred. UTC/GMT
Updated 2019-09-29 18:25:27 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 246 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 2.474 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.36 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 253 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 us70005nj3 Id of event.
Event Code 70005nj3 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak019ci3yvrl,us70005nj3, A comma-separated list of event ids that are associated to an event.

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