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Light earthquake: M4 quake has struck near Norcia in Italy

Earthquake location 42.7258S, 13.1416WA light earthquake with magnitude 4 (ml/mb) was detected on Thursday, 8 kilometers (5 miles) from Norcia in Italy. The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface. Date and time of earthquake in UTC/GMT: 02/11/17 / 2017-11-02 18:04:16 / November 2, 2017 @ 6:04 pm. Unique identifier: us2000bfsp. Ids that are associated to the event: us2000bfsp. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 19:04:16 / 7:04 pm (local time epicenter). Exact location of event, longitude 13.1416 East, latitude 42.7258 North, depth = 10 km.

Epicenter of the event was 75 km (47 miles) from Perugia (c. 120 100 pop), 45 km (28 miles) from Terni (c. 97 100 pop), 88 km (55 miles) from Guidonia Montecelio (c. 67 500 pop), 44 km (27 miles) from Foligno (c. 47 700 pop), 85 km (53 miles) from Montesilvano Marina (c. 46 000 pop), 64 km (40 miles) from San Benedetto del Tronto (c. 45 900 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Tivoli, Luco dei Marsi, Porto Recanati. Nearby country/countries that might be effected, Italy (c. 60 340 000 pop).

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 one and in the last 365 days thirty-two earthquakes of magnitude 3.0 or greater that have been detected in the same area.

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: 8 km SSE of Norcia, Italy. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 13.1416° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 42.7258° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 8km SSE 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 2017-11-02 18:04:16 Time when the event occurred. UTC/GMT
Updated 2017-11-28 16:07:44 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 246 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 0.109 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.07 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 50 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 us2000bfsp Id of event.
Event Code 2000bfsp An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000bfsp, A comma-separated list of event ids that are associated to an event.

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