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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.6 mag was detected near San Pedro de Atacama in Chile

Earthquake location -23.3841S, -68.0816WA minor earthquake magnitude 3.6 (ml/mb) strikes 53 km SSE of San Pedro de Atacama, Chile (33 miles) on Thursday. Exact location, longitude -68.0816° West, latitude -23.3841° South, depth = 124.1 km. All ids that are associated to the event: us20009ycj. Unique identifier: us20009ycj. Global date and time of event UTC/GMT: 20/07/17 / 2017-07-20 05:46:56 / July 20, 2017 @ 5:46 am. The earthquake occurred at a depth of 124.1 km (77 miles). The temblor was detected at 01:46:56 / 1:46 am (local time epicenter).

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. In the past 24 hours, there have been three, in the last 10 days three, in the past 30 days four and in the last 365 days thirty-eight earthquakes of magnitude 3.0 or greater that have been detected nearby.

Questions or comments?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 53 km SSE of San Pedro de Atacama, Chile.

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More information

Parameter Value Description
Magnitude 3.6 mb The magnitude for the event.
Longitude -68.0816° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -23.3841° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 124.1 km Depth of the event in kilometers.
Place 53km SSE of San Pedro de Atacama, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-07-20 05:46:56 Time when the event occurred. UTC/GMT
Updated 2017-08-17 11:04:00 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 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 199 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 0.439 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.85 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 78 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 us20009ycj Id of event.
Event Code 20009ycj An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20009ycj, A comma-separated list of event ids that are associated to an event.

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