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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag was detected near Norcia in Italy

Earthquake location 42.8209S, 13.0139WA light earthquake magnitude 4.5 (ml/mb) strikes 7 kilometers (4 miles) from Norcia in Italy on Sunday. All ids that are associated to the event: us1000732r. Unique identifier: us1000732r. The temblor was reported at 12:58:18 / 12:58 pm (local time epicenter). Exact location of earthquake, 13.0139° East, 42.8209° North, depth 6.11 km. 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 6.11 km (4 miles) below the earth’s surface. Date and time of earthquake in UTC/GMT: 30/10/16 / 2016-10-30 11:58:18 / October 30, 2016 @ 11:58 am.

The epicenter was 60 km (37 miles) from Perugia (c. 120 100 pop), 42 km (26 miles) from Terni (c. 97 100 pop), 95 km (59 miles) from Ancona (c. 90 000 pop), 95 km (59 miles) from Guidonia Montecelio (c. 67 500 pop), 29 km (18 miles) from Foligno (c. 47 700 pop), 86 km (53 miles) from Viterbo (c. 47 100 pop), 71 km (44 miles) from San Benedetto del Tronto (c. 45 900 pop). Nearest cities/city/villages to epicentrum/hypocenter was Le Grazie di Ancona, Vetralla, Guidonia (min 5000 pop). Country/countries that might be effected, Italy (c. 60 340 000 pop).

In the past 24 hours, there have been fourteen, in the last 10 days twenty-four, in the past 30 days twenty-six and in the last 365 days fifty-four earthquakes of magnitude 3.0 or greater that has occurred nearby. 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.

Questions or comments?

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. 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: 7 km WNW of Norcia, Italy.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 13.0139° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 42.8209° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 6.11 km Depth of the event in kilometers.
Place 7km WNW of Norcia, Italy Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-10-30 11:58:18 Time when the event occurred. UTC/GMT
Updated 2016-11-12 13:19:35 Time when the event was most recently updated. UTC/GMT
Timezone offset 60 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 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 0.337 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.11 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 55 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 us1000732r Id of event.
Event Code 1000732r An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000732r, A comma-separated list of event ids that are associated to an event.

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