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Light earthquake: M4 quake has struck near Calama in Chile

Posted by admin on July 24, 2020 0 Comments

Earthquake location -23.077S, -69.3441WA light earthquake magnitude 4 (ml/mb) strikes 81 kilometers (50 miles) from Calama in Chile on Thursday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 19:21:24 / 7:21 pm (local time epicenter). Exact location of earthquake, -69.3441° West, -23.077° South, depth 84.78 km. The epicenter was at a depth of 84.78 km (53 miles). All ids that are associated to the event: us7000apv8. Unique identifier: us7000apv8. Exact time and date of event in UTC/GMT: 16/07/20 / 2020-07-16 19:21:24 / July 16, 2020 @ 7:21 pm.

Earthquake epicenter was 81 km (50 miles) from Calama (c. 143 100 pop). 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.

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

Did you feel anything?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 81 km SSW of Calama, Chile.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -69.3441° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -23.077° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 84.78 km Depth of the event in kilometers.
Place 81 km SSW 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 2020-07-16 19:21:24 Time when the event occurred. UTC/GMT
Updated 2020-07-24 20:07:18 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 0.425 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.1 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 93 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us7000apv8 Id of event.
Event Code 7000apv8 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000apv8, A comma-separated list of event ids that are associated to an event.

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