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Light earthquake 4.2 mag, 57 km W of Valparaiso, Chile

Posted by admin on October 21, 2018 0 Comments

Earthquake location -33.0793S, -72.239WA light earthquake magnitude 4.2 (ml/mb) has struck on Sunday, 57 kilometers (35 miles) from Valparaiso in Chile. Exact location, longitude -72.239° West, latitude -33.0793° South, depth = 11.06 km. Exact time and date of earthquake 21/10/18 / 2018-10-21 13:11:08 / October 21, 2018 @ 1:11 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us1000hf94. Ids that are associated to the event: us1000hf94. The 4.2-magnitude earthquake was detected at 08:11:08 / 8:11 am (local time epicenter). The earthquake occurred at a depth of 11.06 km (7 miles) below the earth’s surface.

Epicenter of the earthquake was 64 km (40 miles) from Viña del Mar (c. 294 600 pop), 57 km (36 miles) from Valparaíso (c. 282 400 pop), 74 km (46 miles) from Quilpué (c. 130 300 pop), 81 km (50 miles) from Villa Alemana (c. 97 300 pop), 82 km (51 miles) from San Antonio (c. 85 700 pop), 91 km (56 miles) from Limache (c. 35 900 pop). Nearest cities/city/villages to epicentrum/hypocenter was Limache, San Antonio, Villa Alemana (min 5000 pop). Country/countries that might be effected, Chile (c. 16 746 000 pop).

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 thirty-two earthquakes of magnitude 3.0 or greater that has occurred nearby. Every year there are an estimated 13,000 light earthquakes in the world.

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. 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: 57 km W of Valparaiso, Chile.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -72.239° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -33.0793° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 11.06 km Depth of the event in kilometers.
Place 57km W of Valparaiso, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-10-21 13:11:08 Time when the event occurred. UTC/GMT
Updated 2018-10-21 13:45:13 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 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 0.508 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.59 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 180 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 us1000hf94 Id of event.
Event Code 1000hf94 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000hf94, A comma-separated list of event ids that are associated to an event.

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