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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.4 quake has struck near La Ligua in Chile

Posted by admin on January 8, 2018 0 Comments

Earthquake location -32.5114S, -71.8001WA light earthquake with magnitude 4.4 (ml/mb) was reported 53 kilometers (33 miles) from La Ligua in Chile on Wednesday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.4-magnitude earthquake was detected at 01:08:18 / 1:08 am (local time epicenter). Global time and date of event 20/12/17 / 2017-12-20 06:08:18 / December 20, 2017 @ 6:08 am UTC/GMT. Event id: us1000btj6. Ids that are associated to the earthquake: us1000btj6. Exact location, longitude -71.8001° West, latitude -32.5114° South, depth = 24.85 km. The earthquake was roughly at a depth of 24.85 km (15 miles).

Nearby country/countries that might be effected, Chile (c. 16 746 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Llaillay, Limache, Villa Alemana (min 5000 pop). Epicenter of the earthquake was 62 km (38 miles) from Viña del Mar (c. 294 600 pop), 61 km (38 miles) from Valparaíso (c. 282 400 pop), 68 km (42 miles) from Quilpué (c. 130 300 pop), 71 km (44 miles) from Villa Alemana (c. 97 300 pop), 66 km (41 miles) from Quillota (c. 67 800 pop), 62 km (39 miles) from Hacienda La Calera (c. 49 100 pop).

There are an estimated 13,000 light earthquakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been three, in the last 10 days three, in the past 30 days ten and in the last 365 days one hundred and sixty-one earthquakes of magnitude 3.0 or greater that has struck near.

Did you feel the quake?

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: 53 km W of La Ligua, Chile.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -71.8001° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -32.5114° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 24.85 km Depth of the event in kilometers.
Place 53km W of La Ligua, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-12-20 06:08:18 Time when the event occurred. UTC/GMT
Updated 2018-01-08 10:09:58 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 298 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 0.528 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.94 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 151 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 us1000btj6 Id of event.
Event Code 1000btj6 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000btj6, A comma-separated list of event ids that are associated to an event.

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