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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.8 mag has occurred near Yunaska Island in Alaska



Earthquake location 52.465S, -170.1973WA minor earthquake magnitude 3.8 (ml/mb) has occurred on Saturday, 38 km ESE of Yunaska Island, Alaska (24 miles). The earthquake was roughly at a depth of 17.89 km (11 miles). Exact time and date of event in UTC/GMT: 29/07/17 / 2017-07-29 12:32:18 / July 29, 2017 @ 12:32 pm. Id of earthquake: us2000a2i2. Event ids that are associated: ak16381249, us2000a2i2. The 3.8-magnitude earthquake has occurred at 01:32:18 / 1:32 am (local time epicenter). Exact location of earthquake, longitude -170.1973 West, latitude 52.465 North, depth = 17.89 km.

In the past 24 hours, there have been three, in the last 10 days four, in the past 30 days seven and in the last 365 days one hundred and twenty-seven earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. There are an estimated 130,000 minor earthquakes in the world each year.

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 38 km ESE of Yunaska Island, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.8 mb The magnitude for the event.
Longitude -170.1973° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.465° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 17.89 km Depth of the event in kilometers.
Place 38km ESE of Yunaska 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 2017-07-29 12:32:18 Time when the event occurred. UTC/GMT
Updated 2017-08-04 08:35:05 Time when the event was most recently updated. UTC/GMT
Timezone offset -660 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 222 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 0.403 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.17 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 187 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 us2000a2i2 Id of event.
Event Code 2000a2i2 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak16381249,us2000a2i2, A comma-separated list of event ids that are associated to an event.

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