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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.7 mag has occurred near Buldir Island in Alaska


Earthquake location 52.1061S, 174.9682WA minor earthquake magnitude 3.7 (ml/mb) has occurred on Sunday, 71 km WSW of Buldir Island, Alaska (44 miles). Exact location of earthquake, 174.9682° East, 52.1061° North, depth 35 km. Global time and date of event 21/10/18 / 2018-10-21 05:16:10 / October 21, 2018 @ 5:16 am UTC/GMT. Event id: us1000hhcl. Ids that are associated to the earthquake: ak20288373, us1000hhcl. The 3.7-magnitude earthquake was detected at 17:16:10 / 5:16 pm (local time epicenter). The earthquake occurred at a depth of 35 km (22 miles).

In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days four and in the last 365 days nineteen earthquakes of magnitude 3.0 or greater that was reported nearby. Every year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

Did you feel the quake?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 71 km WSW of Buldir Island, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.7 mb The magnitude for the event.
Longitude 174.9682° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.1061° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 71km WSW of Buldir Island, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-10-21 05:16:10 Time when the event occurred. UTC/GMT
Updated 2018-11-15 12:43:08 Time when the event was most recently updated. UTC/GMT
Timezone offset 720 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 211 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 2.194 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.59 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 178 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us1000hhcl Id of event.
Event Code 1000hhcl An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak20288373,us1000hhcl, A comma-separated list of event ids that are associated to an event.

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