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Light earthquake: M4.3 quake has struck near Calama in Chile


Earthquake location -21.7818S, -68.5616WA light earthquake with magnitude 4.3 (ml/mb) was reported 84 kilometers (52 miles) from Calama in Chile on Wednesday. The 4.3-magnitude earthquake was detected at 10:41:27 / 10:41 am (local time epicenter). All ids that are associated to the event: us2000h8p6. Unique identifier: us2000h8p6. Global time and date of event 05/09/18 / 2018-09-05 14:41:27 / September 5, 2018 @ 2:41 pm UTC/GMT. The epicenter was at a depth of 126.45 km (79 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude -68.5616 West, latitude -21.7818 South, depth = 126.45 km.

Close country/countries that might be effected, Chile (c. 16 746 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Calama. Epicenter of the event was 84 km (52 miles) from Calama (c. 143 100 pop).

In the past 24 hours, there have been one, in the last 10 days three, in the past 30 days six and in the last 365 days seventy 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. Each year there are an estimated 13,000 light quakes in the world.

Did you feel it?

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. 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: 84 km NNE of Calama, Chile.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -68.5616° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -21.7818° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 126.45 km Depth of the event in kilometers.
Place 84km NNE of Calama, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-09-05 14:41:27 Time when the event occurred. UTC/GMT
Updated 2018-09-06 06:28:18 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 284 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 0.632 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.02 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 39 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 us2000h8p6 Id of event.
Event Code 2000h8p6 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000h8p6, A comma-separated list of event ids that are associated to an event.

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