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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag strikes near Calama in Chile

Earthquake location -21.7493S, -68.467WA light earthquake magnitude 4.5 (ml/mb) has occurred on Wednesday, 92 kilometers (57 miles) from Calama in Chile. Exact time and date of event in UTC/GMT: 18/12/19 / 2019-12-18 17:39:06 / December 18, 2019 @ 5:39 pm. The epicenter was at a depth of 113.07 km (70 miles). Exact location of event, longitude -68.467 West, latitude -21.7493 South, depth = 113.07 km. The 4.5-magnitude earthquake was detected at 13:39:06 / 1:39 pm (local time epicenter). Id of earthquake: us60006t9z. Event ids that are associated: us60006t9z. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Event epicenter was 92 km (57 miles) from Calama (c. 143 100 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Calama. Close country/countries, Chile (c. 16 746 000 pop) (That might be effected).

There are an estimated 13,000 light quakes in the world each year. In the past 24 hours, there have been four, in the last 10 days five, in the past 30 days nine and in the last 365 days eighty-six earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel the quake?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 92 km NNE of Calama, Chile. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -68.467° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -21.7493° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 113.07 km Depth of the event in kilometers.
Place 92km 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 2019-12-18 17:39:06 Time when the event occurred. UTC/GMT
Updated 2019-12-27 00:25:21 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 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 0.721 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.67 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 57 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 us60006t9z Id of event.
Event Code 60006t9z An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us60006t9z, A comma-separated list of event ids that are associated to an event.

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