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Minor World Earthquakes Magnitude -3.9

Minor earthquake: M3 quake has struck near Onida in South Dakota

Posted by admin on August 18, 2017 0 Comments

Earthquake location 44.825S, -99.938WA minor earthquake magnitude 3 (ml/mb) has struck on Monday, 16 kilometers (10 miles) from Onida in South Dakota. Exact location of event, depth 14.06 km, -99.938° West, 44.825° North. Global date and time of event UTC/GMT: 15/08/17 / 2017-08-15 00:55:34 / August 15, 2017 @ 12:55 am. The earthquake occurred at a depth of 14.06 km (9 miles) below the earth’s surface. Id of earthquake: us2000a9gb. Event ids that are associated: us2000a9gb. The temblor was reported at 17:55:34 / 5:55 pm (local time epicenter).

Epicenter of the earthquake was 60 km (38 miles) from Pierre (c. 13 600 pop). Nearest cities/city/villages to epicentrum/hypocenter was Pierre (min 5000 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop).

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

How would you describe the shaking?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 16 km NE of Onida, South Dakota. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -99.938° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 44.825° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 14.06 km Depth of the event in kilometers.
Place 16km NE of Onida, South Dakota Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-08-15 00:55:34 Time when the event occurred. UTC/GMT
Updated 2017-08-18 16:41:56 Time when the event was most recently updated. UTC/GMT
Timezone offset -420 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 138 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 ,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 0.798 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.66 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 120 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb_lg The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us2000a9gb Id of event.
Event Code 2000a9gb An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000a9gb, A comma-separated list of event ids that are associated to an event.

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