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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.7 quake has struck near Changuillo in Peru


Earthquake location -15.0186S, -75.7311WA light earthquake with magnitude 4.7 (ml/mb) was detected on Wednesday, 67 kilometers (42 miles) from Changuillo in Peru. The 4.7-magnitude earthquake has occurred at 18:47:28 / 6:47 pm (local time epicenter). Global date and time of event UTC/GMT: 28/10/20 / 2020-10-28 18:47:28 / October 28, 2020 @ 6:47 pm. The epicenter was at a depth of 15.35 km (10 miles). Exact location of event, longitude -75.7311 West, latitude -15.0186 South, depth = 15.35 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: us7000c74n. Id of event: us7000c74n.

Nearest cities/city/villages to epicentrum/hypocenter was Santiago, Nazca, Palpa (min 5000 pop). Close country/countries that might be effected, Peru (c. 29 907 000 pop). Epicenter of the earthquake was 88 km (54 miles) from Nazca (c. 23 600 pop), 70 km (44 miles) from Minas de Marcona (c. 15 500 pop), 92 km (57 miles) from Santiago (c. 10 400 pop), 80 km (50 miles) from Palpa (c. 5 900 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days two and in the last 365 days six earthquakes of magnitude 3.0 or greater that was reported nearby.

Questions or comments?

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: 67 km SW of Changuillo, Peru. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude -75.7311° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -15.0186° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 15.35 km Depth of the event in kilometers.
Place 67 km SW of Changuillo, Peru Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-10-28 18:47:28 Time when the event occurred. UTC/GMT
Updated 2020-11-10 17:32:24 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 340 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 3.201 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.96 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 107 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 us7000c74n Id of event.
Event Code 7000c74n An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000c74n, A comma-separated list of event ids that are associated to an event.

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