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Light earthquake: M4.5 quake has struck near Arauco in Argentina

Earthquake location -28.5947S, -66.9767WA light earthquake magnitude 4.5 (ml/mb) strikes 17 kilometers (11 miles) from Arauco in Argentina on Sunday. Exact location of earthquake, -66.9767° West, -28.5947° South, depth 132.68 km. The 4.5-magnitude earthquake has occurred at 13:08:52 / 1:08 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 29/10/17 / 2017-10-29 16:08:52 / October 29, 2017 @ 4:08 pm UTC/GMT. Event id: us1000aybq. Ids that are associated to the earthquake: us1000aybq. The epicenter of the earthquake was roughly 132.68 km (82 miles) below the earth’s surface.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Capayán, La Rioja, Tinogasta. Nearby country/countries that might be effected, Argentina (c. 41 343 000 pop). Event epicenter was 92 km (57 miles) from La Rioja (c. 162 600 pop), 81 km (50 miles) from Chilecito (c. 42 200 pop), 83 km (51 miles) from Tinogasta (c. 14 500 pop), 18 km (11 miles) from Arauco (c. 13 700 pop), 92 km (57 miles) from Capayán (c. 6 400 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 seventeen earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light earthquakes in the world each year.

Did you feel it?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 17 km W of Arauco, Argentina. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -66.9767° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -28.5947° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 132.68 km Depth of the event in kilometers.
Place 17km W of Arauco, Argentina Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-10-29 16:08:52 Time when the event occurred. UTC/GMT
Updated 2017-10-29 18:39:19 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 312 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 2.905 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.54 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 36 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 us1000aybq Id of event.
Event Code 1000aybq An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000aybq, A comma-separated list of event ids that are associated to an event.

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