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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag was detected near Kodiak in Alaska

Posted by admin on February 12, 2018 0 Comments

Earthquake location 56.0851S, -149.9762WA light earthquake magnitude 4.1 (ml/mb) strikes 240 km SE of Kodiak, Alaska (149 miles) on Thursday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 10 km (6 miles). The 4.1-magnitude earthquake was detected at 09:57:33 / 9:57 am (local time epicenter). Global time and date of event 08/02/18 / 2018-02-08 19:57:33 / February 8, 2018 @ 7:57 pm UTC/GMT. Exact location of event, depth 10 km, -149.9762° West, 56.0851° North. Unique identifier: us2000cz1a. Ids that are associated to the event: ak18414234, us2000cz1a.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been thirty-seven, in the last 10 days two hundred and fifteen, in the past 30 days one thousand, three hundred and eighty-two and in the last 365 days one thousand, three hundred and eighty-six earthquakes of magnitude 3.0 or greater that has struck near. Each 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 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: 240 km SE of Kodiak, Alaska.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -149.9762° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.0851° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 240km 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 2018-02-08 19:57:33 Time when the event occurred. UTC/GMT
Updated 2018-02-12 14:21:36 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 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 ,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 2.154 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.61 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 148 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 us2000cz1a Id of event.
Event Code 2000cz1a An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak18414234,us2000cz1a, A comma-separated list of event ids that are associated to an event.

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