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


Earthquake location -20.3151S, -69.3316WA light earthquake magnitude 4.3 (ml/mb) has struck on Tuesday, 85 kilometers (53 miles) from Iquique in Chile. The 4.3-magnitude earthquake has occurred at 08:11:42 / 8:11 am (local time epicenter). Exact time and date of event in UTC/GMT: 02/10/18 / 2018-10-02 12:11:42 / October 2, 2018 @ 12:11 pm. Id of earthquake: us1000h5ld. Event ids that are associated: us1000h5ld. Exact location of earthquake, longitude -69.3316 West, latitude -20.3151 South, depth = 83.48 km. The earthquake was roughly at a depth of 83.48 km (52 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Nearest cities/city/towns to hypocenter/epicentrum was Iquique (min 5000 pop). Close country/countries that might be effected, Chile (c. 16 746 000 pop). Earthquake epicenter was 85 km (53 miles) from Iquique (c. 227 500 pop).

In the past 24 hours, there have been one, in the last 10 days four, in the past 30 days seven and in the last 365 days fourty-nine earthquakes of magnitude 3.0 or greater that has occurred nearby. There are an estimated 13,000 light quakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 85 km E of Iquique, Chile.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -69.3316° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -20.3151° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 83.48 km Depth of the event in kilometers.
Place 85km E of Iquique, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-10-02 12:11:42 Time when the event occurred. UTC/GMT
Updated 2018-10-02 13:29:03 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 0.523 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.43 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 52 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mwr The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us1000h5ld Id of event.
Event Code 1000h5ld An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000h5ld, A comma-separated list of event ids that are associated to an event.

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