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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag has occurred near San Pedro de Atacama in Chile


Earthquake location -22.7647S, -68.4289WA light earthquake magnitude 4.3 (ml/mb) has struck on Tuesday, 27 kilometers (17 miles) from San Pedro de Atacama in Chile. The earthquake occurred at a depth of 111.32 km (69 miles). Exact time and date of event in UTC/GMT: 29/08/18 / 2018-08-29 00:40:23 / August 29, 2018 @ 12:40 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.3-magnitude earthquake has occurred at 20:40:23 / 8:40 pm (local time epicenter). Exact location of event, depth 111.32 km, -68.4289° West, -22.7647° South. Unique identifier: us1000gj90. Ids that are associated to the event: us1000gj90.

Close country/countries, Chile (c. 16 746 000 pop) (That might be effected). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Calama. Epicenter of the earthquake was 62 km (38 miles) from Calama (c. 143 100 pop).

Each year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been four, in the last 10 days four, in the past 30 days five and in the last 365 days fifty-six 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.

How would you describe the shaking?

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: 27 km NW of San Pedro de Atacama, Chile.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -68.4289° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -22.7647° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 111.32 km Depth of the event in kilometers.
Place 27km NW of San Pedro de Atacama, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-08-29 00:40:23 Time when the event occurred. UTC/GMT
Updated 2018-09-11 04:39:53 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 0.296 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.26 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 61 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 us1000gj90 Id of event.
Event Code 1000gj90 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000gj90, A comma-separated list of event ids that are associated to an event.

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