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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag was detected near Vallenar in Chile


Earthquake location -27.9186S, -71.2558WA light earthquake with magnitude 4.1 (ml/mb) was detected on Saturday, 87 kilometers (54 miles) from Vallenar in Chile. The temblor was detected at 20:49:59 / 8:49 pm (local time epicenter). Exact location of earthquake, longitude -71.2558 West, latitude -27.9186 South, depth = 19.17 km. The earthquake occurred at a depth of 19.17 km (12 miles). Date and time of earthquake in UTC/GMT: 07/10/18 / 2018-10-07 00:49:59 / October 7, 2018 @ 12:49 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). All ids that are associated to the event: us1000h8b2. Unique identifier: us1000h8b2.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Vallenar. Event epicenter was 88 km (55 miles) from Vallenar (c. 44 900 pop). Close country/countries, Chile (c. 16 746 000 pop) (That might be effected).

Every year there are an estimated 13,000 light earthquakes in the world. 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 one, in the past 30 days two and in the last 365 days thirty-two earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel it?

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 87 km NW of Vallenar, Chile. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -71.2558° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -27.9186° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 19.17 km Depth of the event in kilometers.
Place 87km NW of Vallenar, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-10-07 00:49:59 Time when the event occurred. UTC/GMT
Updated 2018-10-21 01:37:55 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 259 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 0.327 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.9 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 184 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 us1000h8b2 Id of event.
Event Code 1000h8b2 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000h8b2, A comma-separated list of event ids that are associated to an event.

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