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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag strikes near Copiapo in Chile


Earthquake location -27.065S, -70.409WA light earthquake magnitude 4.2 (ml/mb) strikes 34 kilometers (21 miles) from Copiapo in Chile on Friday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 22:57:10 / 10:57 pm (local time epicenter). The epicenter of the earthquake was roughly 85.8 km (53 miles) below the earth’s surface. Unique identifier: us10008hs8. Ids that are associated to the event: us10008hs8. Exact location of event, depth 85.8 km, -70.409° West, -27.065° South. Global date and time of event UTC/GMT: 15/04/17 / 2017-04-15 02:57:10 / April 15, 2017 @ 2:57 am.

Nearest cities/city/towns to hypocenter/epicentrum was Diego de Almagro, Copiapó (min 5000 pop). Epicenter of the earthquake was 34 km (21 miles) from Copiapó (c. 129 300 pop), 85 km (53 miles) from Diego de Almagro (c. 18 100 pop). Nearby country/countries, Chile (c. 16 746 000 pop) (That might be effected).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days three and in the last 365 days seventeen earthquakes of magnitude 3.0 or greater that was reported nearby. Each year there are an estimated 13,000 light earthquakes in the world.

Questions or comments?

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: 34 km NNW of Copiapo, Chile.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -70.409° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -27.065° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 85.8 km Depth of the event in kilometers.
Place 34km NNW of Copiapo, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-04-15 02:57:10 Time when the event occurred. UTC/GMT
Updated 2017-04-28 23:45:10 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 271 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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.02 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 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 us10008hs8 Id of event.
Event Code 10008hs8 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10008hs8, A comma-separated list of event ids that are associated to an event.

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