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Light earthquake: M4 quake has struck near Calama in Chile

Posted by admin on July 21, 2020 0 Comments

Earthquake location -21.9288S, -68.6582WA light earthquake magnitude 4 (ml/mb) strikes 64 kilometers (40 miles) from Calama in Chile on Tuesday. The temblor was picked up at 05:17:12 / 5:17 am (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 event in UTC/GMT: 21/07/20 / 2020-07-21 05:17:12 / July 21, 2020 @ 5:17 am. All ids that are associated to the event: us7000as58. Unique identifier: us7000as58. The earthquake was roughly at a depth of 131.26 km (82 miles). Exact location, longitude -68.6582° West, latitude -21.9288° South, depth = 131.26 km.

Nearby country/countries, Chile (c. 16 746 000 pop) (That might be effected). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Calama. Event epicenter was 65 km (40 miles) from Calama (c. 143 100 pop).

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. In the past 24 hours, there have been one, in the last 10 days three, in the past 30 days five and in the last 365 days eighty-three earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Questions or comments?

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: 64 km NNE of Calama, Chile. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -68.6582° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -21.9288° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 131.26 km Depth of the event in kilometers.
Place 64 km 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 2020-07-21 05:17:12 Time when the event occurred. UTC/GMT
Updated 2020-07-21 06:05:41 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 246 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 0.558 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.7 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 89 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 us7000as58 Id of event.
Event Code 7000as58 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000as58, A comma-separated list of event ids that are associated to an event.

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