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Light earthquake 4.6 mag, 68 km WNW of Abra Pampa, Argentina


Earthquake location -22.5359S, -66.3289WA light earthquake with magnitude 4.6 (ml/mb) was reported 68 kilometers (42 miles) from Abra Pampa in Argentina on Sunday. Event id: us2000cm43. Ids that are associated to the earthquake: us2000cm43. Exact time and date of event in UTC/GMT: 21/01/18 / 2018-01-21 11:52:26 / January 21, 2018 @ 11:52 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -66.3289 West, latitude -22.5359 South, depth = 256.86 km. The temblor was reported at 08:52:26 / 8:52 am (local time epicenter). The epicenter was at a depth of 256.86 km (160 miles).

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Villazón, La Quiaca, Abra Pampa. Earthquake epicenter was 91 km (56 miles) from Villazón (c. 30 300 pop), 90 km (56 miles) from La Quiaca (c. 14 800 pop), 68 km (42 miles) from Abra Pampa (c. 9 400 pop). Country/countries that might be effected, Argentina (c. 41 343 000 pop), Bolivia (c. 9 947 000 pop).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days thirty-three earthquakes of magnitude 3.0 or greater that has occurred nearby. There are an estimated 13,000 light earthquakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Questions or comments?

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. 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: 68 km WNW of Abra Pampa, Argentina.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -66.3289° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -22.5359° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 256.86 km Depth of the event in kilometers.
Place 68km WNW of Abra Pampa, Argentina Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-01-21 11:52:26 Time when the event occurred. UTC/GMT
Updated 2018-01-21 12:07:10 Time when the event was most recently updated. UTC/GMT
Timezone offset -180 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 326 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 1.757 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.05 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 96 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 us2000cm43 Id of event.
Event Code 2000cm43 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000cm43, A comma-separated list of event ids that are associated to an event.

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