Earthquake with magnitude of Md 3.0 on date 22-12-1985 and time 07:27:37 (Italy) in region 6 km NE Nocera Umbra (PG)

A magnitude Md 3.0 earthquake occured in region: 6 km NE Nocera Umbra (PG), on

  • 22-12-1985 06:27:37 (UTC)
  • 22-12-1985 07:27:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.16, 12.82 at 9 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Nocera Umbra PG 6 5839 5839
Gualdo Tadino PG 8 15208 21047
Fiuminata MC 10 1402 22449
Sefro MC 11 422 22871
Valtopina PG 13 1398 24269
Pioraco MC 13 1134 25403
Esanatoglia MC 14 2034 27437
Serravalle di Chienti MC 15 1070 28507
Fossato di Vico PG 16 2840 31347
Valfabbrica PG 18 3389 34736
Matelica MC 19 9981 44717
Assisi PG 20 28299 73016
Castelraimondo MC 20 4587 77603
Sigillo PG 20 2404 80007

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NE of Foligno (57155 inhabitants)
36 Km E of Perugia (166134 inhabitants)
68 Km N of Terni (111501 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
78 Km S of Fano (60888 inhabitants)
83 Km E of Arezzo (99543 inhabitants)
84 Km S of Pesaro (94582 inhabitants)
91 Km NW of Teramo (54892 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 3.0 1985-12-22
06:27:37
43.16 12.82 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 18629
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-12-22 06:27:37 ± 0.184
Latitude 43.16 ± 0.01
Longitude 12.82 ± 0.02
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 18629

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 1741
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.01659
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

Md:3

Field Value
Value 3
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 18629
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:21:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.BDI.Z. 1985-12-22T06:28:08.00 10.0 undecidable manual PN 299 0.0166 -0.89 0.3
--.MNS.Z. 1985-12-22T06:28:05.00 10.0 undecidable manual SG 187 0.007 0.39 0.5
--.CRE.Z. 1985-12-22T06:28:05.20 10.0 undecidable manual SG 306 0.007 0.65 0.3
--.AM1.Z. 1985-12-22T06:28:03.20 10.0 undecidable manual SG 55 0.0062 1.66 0
--.RDP.Z. 1985-12-22T06:28:02.50 10.0 undecidable manual PN 183 0.0126 -0.35 0.9
--.AQU.Z. 1985-12-22T06:27:56.00 10.0 undecidable manual PG 151 0.0082 0.53 0.9
--.CRE.Z. 1985-12-22T06:27:53.00 10.0 undecidable manual PG 306 0.007 -0.04 1.5
--.MNS.Z. 1985-12-22T06:27:52.50 10.0 undecidable manual PG 187 0.007 -0.58 0.9
--.AM1.Z. 1985-12-22T06:27:51.10 10.0 undecidable manual PG 55 0.0062 -0.2 1.5
--.ARV.Z. 1985-12-22T06:27:51.00 10.0 undecidable manual SG 14 0.0031 0.34 0.8
--.CM2.Z. 1985-12-22T06:27:46.52 10.0 undecidable manual SG 82 0.0021 -0.35 0.8
--.ASS.Z. 1985-12-22T06:27:44.00 10.0 undecidable manual SG 231 0.0014 -0.14 0.6
--.ARV.Z. 1985-12-22T06:27:44.80 10.0 positive manual PG 14 0.0031 -0.22 3
--.CM2.Z. 1985-12-22T06:27:42.35 10.0 undecidable manual PG 82 0.0021 -0.48 1.1
--.ASS.Z. 1985-12-22T06:27:41.80 10.0 positive manual PG 231 0.0014 0.54 2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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