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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag has occurred near Tocopilla in Chile



Earthquake location -22.1329S, -69.8941WA light earthquake magnitude 4.5 (ml/mb) has struck on Wednesday, 31 kilometers (19 miles) from Tocopilla in Chile. The epicenter of the earthquake was roughly 72.99 km (45 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.5-magnitude earthquake was detected at 09:29:50 / 9:29 am (local time epicenter). Event id: us10003j2n. Ids that are associated to the earthquake: us10003j2n. Exact location of earthquake, -69.8941° West, -22.1329° South, depth 72.99 km. Date and time of earthquake in UTC/GMT: 30/09/15 / 2015-09-30 12:29:50 / September 30, 2015 @ 12:29 pm.

Country/countries that might be effected, Chile (c. 16 746 000 pop). Earthquake epicenter was 32 km (20 miles) from Tocopilla (c. 24 500 pop). Nearest cities/city/villages to epicentrum/hypocenter was Tocopilla (min 5000 pop).

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

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 31 km E of Tocopilla, Chile. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -69.8941° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -22.1329° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 72.99 km Depth of the event in kilometers.
Place 31km E of Tocopilla, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-09-30 12:29:50 Time when the event occurred. UTC/GMT
Updated 2015-10-22 10:46:03 Time when the event was most recently updated. UTC/GMT
Timezone offset -180 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 312 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 0.309 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.65 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 97 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 us10003j2n Id of event.
Event Code 10003j2n An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10003j2n, A comma-separated list of event ids that are associated to an event.

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