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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag strikes near Rengo in Chile

Earthquake location -34.609S, -70.437WA light earthquake magnitude 4.3 (ml/mb) strikes 44 kilometers (27 miles) from Rengo in Chile on Sunday. All ids that are associated to the event: us20007g74. Unique identifier: us20007g74. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 23/10/16 / 2016-10-23 09:06:30 / October 23, 2016 @ 9:06 am UTC/GMT. The earthquake occurred at a depth of 126.5 km (79 miles). The temblor was picked up at 05:06:30 / 5:06 am (local time epicenter). Exact location, longitude -70.437° West, latitude -34.609° South, depth = 126.5 km.

Earthquake epicenter was 56 km (35 miles) from Rancagua (c. 212 700 pop), 84 km (52 miles) from Curicó (c. 102 400 pop), 45 km (28 miles) from Rengo (c. 38 100 pop), 85 km (53 miles) from Santa Cruz (c. 33 300 pop), 51 km (32 miles) from Machalí (c. 27 600 pop), 66 km (41 miles) from Graneros (c. 23 300 pop). Closest city/cities/towns to epicentrum/hypocenter was Rauco, Santa Cruz, Curicó (min 5000 pop). Close country/countries, Chile (c. 16 746 000 pop) (That might be effected).

There are an estimated 13,000 light earthquakes in the world each year. In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days two and in the last 365 days 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.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 44 km ESE of Rengo, Chile.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -70.437° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -34.609° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 126.5 km Depth of the event in kilometers.
Place 44km ESE of Rengo, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-10-23 09:06:30 Time when the event occurred. UTC/GMT
Updated 2016-11-06 05:52:49 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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.6 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 us20007g74 Id of event.
Event Code 20007g74 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20007g74, A comma-separated list of event ids that are associated to an event.

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