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Light World Earthquakes Magnitude 4-4.9

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



Earthquake location -22.4643S, -68.4927WA light earthquake magnitude 4.3 (ml/mb) has struck on Thursday, 45 kilometers (28 miles) from Calama in Chile. The earthquake occurred at a depth of 140.97 km (88 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global date and time of event UTC/GMT: 07/07/17 / 2017-07-07 01:54:43 / July 7, 2017 @ 1:54 am. The temblor was detected at 21:54:43 / 9:54 pm (local time epicenter). All ids that are associated to the event: us100097j8. Unique identifier: us100097j8. Exact location of earthquake, longitude -68.4927 West, latitude -22.4643 South, depth = 140.97 km.

Nearest cities/city/villages to epicentrum/hypocenter was Calama (min 5000 pop). Close country/countries that might be effected, Chile (c. 16 746 000 pop). Earthquake epicenter was 45 km (28 miles) from Calama (c. 143 100 pop).

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

How would you describe the shaking?

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 45 km E of Calama, Chile.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -68.4927° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -22.4643° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 140.97 km Depth of the event in kilometers.
Place 45km E 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 2017-07-07 01:54:43 Time when the event occurred. UTC/GMT
Updated 2017-08-03 04:46:03 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 0.414 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.68 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 45 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 us100097j8 Id of event.
Event Code 100097j8 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us100097j8, A comma-separated list of event ids that are associated to an event.

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