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Light earthquake: M4.5 quake has struck near Grebocice in Poland


Earthquake location 51.5937S, 16.1666WA light earthquake magnitude 4.5 (ml/mb) has occurred on Friday, 0 kilometers (0 miles) from Grebocice in Poland. The 4.5-magnitude earthquake has occurred at 07:46:51 / 7:46 am (local time epicenter). Exact location of earthquake, longitude 16.1666 East, latitude 51.5937 North, depth = 5.51 km. Exact time and date of event in UTC/GMT: 16/12/16 / 2016-12-16 06:46:51 / December 16, 2016 @ 6:46 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). All ids that are associated to the event: us2000818i. Unique identifier: us2000818i. The epicenter was at a depth of 5.51 km (3 miles).

Epicenter of the event was 81 km (51 miles) from Wrocław (c. 634 900 pop), 92 km (57 miles) from Wałbrzych (c. 127 400 pop), 59 km (37 miles) from Zielona Góra (c. 118 400 pop), 43 km (27 miles) from Legnica (c. 106 000 pop), 83 km (52 miles) from Jelenia Góra (c. 87 300 pop), 22 km (13 miles) from Lubin (c. 77 500 pop), 10 km (6 miles) from Głogów (c. 68 500 pop). Nearest cities/city/villages to epicentrum/hypocenter was Plewiska, Kórnik, Görlitz (min 5000 pop). Nearby country/countries that might be effected, Poland (c. 38 500 000 pop).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days five earthquakes of magnitude 3.0 or greater that has occurred nearby. Each 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.

Questions or comments?

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. 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: 0 km S of Grebocice, Poland.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 16.1666° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.5937° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 5.51 km Depth of the event in kilometers.
Place 0km S of Grebocice, Poland Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-12-16 06:46:51 Time when the event occurred. UTC/GMT
Updated 2016-12-16 07:06:33 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 2 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.05 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 41 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 us2000818i Id of event.
Event Code 2000818i An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000818i, A comma-separated list of event ids that are associated to an event.

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