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Light earthquake: M4.3 quake has struck near La Ligua in Chile

Posted by admin on July 29, 2018 0 Comments

Earthquake location -32.5007S, -71.9277WA light earthquake magnitude 4.3 (ml/mb) has struck on Sunday, 65 kilometers (40 miles) from La Ligua in Chile. Exact location of event, depth 16.71 km, -71.9277° West, -32.5007° South. The temblor was reported at 08:49:06 / 8:49 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 16.71 km (10 miles). All ids that are associated to the event: us2000ggp7. Unique identifier: us2000ggp7. Global time and date of event 29/07/18 / 2018-07-29 13:49:06 / July 29, 2018 @ 1:49 pm UTC/GMT.

Close country/countries, Chile (c. 16 746 000 pop) (That might be effected). Epicenter of the event was 68 km (42 miles) from Viña del Mar (c. 294 600 pop), 66 km (41 miles) from Valparaíso (c. 282 400 pop), 76 km (47 miles) from Quilpué (c. 130 300 pop), 79 km (49 miles) from Villa Alemana (c. 97 300 pop), 76 km (48 miles) from Quillota (c. 67 800 pop), 74 km (46 miles) from Hacienda La Calera (c. 49 100 pop). Closest city/cities/towns to epicentrum/hypocenter was Limache, Villa Alemana, Quillota (min 5000 pop).

Every year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days four and in the last 365 days fifty earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel anything?

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: 65 km W of La Ligua, Chile.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -71.9277° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -32.5007° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 16.71 km Depth of the event in kilometers.
Place 65km 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 2018-07-29 13:49:06 Time when the event occurred. UTC/GMT
Updated 2018-07-29 14:35:21 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 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 0.535 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.42 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 157 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 us2000ggp7 Id of event.
Event Code 2000ggp7 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000ggp7, A comma-separated list of event ids that are associated to an event.

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