INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of Md 3.3 on date 09-01-1985 and time 04:13:01 (Italy) in region 8 km SE Gubbio (PG)

A magnitude Md 3.3 earthquake occured in region: 8 km SE Gubbio (PG), on

  • 09-01-1985 03:13:01 (UTC)
  • 09-01-1985 04:13:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3, 12.64 at 4 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
Gubbio PG 8 32216 32216
Costacciaro PG 9 1216 33432
Sigillo PG 9 2404 35836
Fossato di Vico PG 10 2840 38676
Scheggia e Pascelupo PG 12 1393 40069
Gualdo Tadino PG 14 15208 55277
Valfabbrica PG 16 3389 58666
Cantiano PU 19 2245 60911

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NE of Perugia (166134 inhabitants)
39 Km N of Foligno (57155 inhabitants)
64 Km E of Arezzo (99543 inhabitants)
68 Km SW of Fano (60888 inhabitants)
71 Km SW of Pesaro (94582 inhabitants)
79 Km W of Ancona (100861 inhabitants)
82 Km N of Terni (111501 inhabitants)
85 Km S of Rimini (147750 inhabitants)
98 Km SE of Cesena (96758 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
Rev 1000 Md 3.3
ML-VAX 2.7
1985-01-09
03:13:01
43.3 12.64 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 279
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-01-09 03:13:01 ± 0.462
Latitude 43.30 ± 0.02
Longitude 12.64 ± 0.03
Depth (km) 4 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 279

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) 3260.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 119
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.0021
Epicentral distance of station farthest from the epicenter (degree) 0.02955
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

Md:3.3

Field Value
Value 3.3
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 279
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:05:35

ML:2.7

Field Value
Value 2.7
Uncertainty
Num. used stations 6
Type of magnitude ML
Reference to an origin 279
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.FO1.Z. 1985-01-09T03:14:31.50 10.0 undecidable manual SN 1 0.0295 0.05 0.3
--.FO1.Z. 1985-01-09T03:13:52.70 10.0 undecidable manual PN 1 0.0295 -0.56 0.7
--.CTI.Z. 1985-01-09T03:13:46.70 10.0 undecidable manual PN 346 0.0254 -0.26 0.9
--.BVT.Z. 1985-01-09T03:13:40.70 10.0 undecidable manual PN 300 0.021 0.42 0.9
--.MNS.Z. 1985-01-09T03:13:34.00 10.0 undecidable manual SG 178 0.0083 0.4 0.8
--.BDI.Z. 1985-01-09T03:13:32.20 10.0 undecidable manual PN 297 0.0149 1.34 0.4
--.RDP.Z. 1985-01-09T03:13:31.00 10.0 undecidable manual PN 177 0.0138 1.72 0.2
--.RMP.Z. 1985-01-09T03:13:27.00 10.0 undecidable manual PN 178 0.0134 -1.55 0.2
--.AQU.Z. 1985-01-09T03:13:24.00 10.0 undecidable manual PN 149 0.0099 0.8 0.9
--.MNS.Z. 1985-01-09T03:13:18.80 10.0 undecidable manual PG 178 0.0083 -1.06 0.6
--.ALP.Z. 1985-01-09T03:13:18.40 10.0 undecidable manual PG 127 0.0077 -0.32 2.6
--.CM2.Z. 1985-01-09T03:13:17.50 10.0 undecidable manual SG 106 0.0034 1.59 0.1
--.AM1.Z. 1985-01-09T03:13:16.40 10.0 undecidable manual PG 70 0.0066 -0.22 1.4
--.PO9.Z. 1985-01-09T03:13:15.90 10.0 undecidable manual PG 162 0.0068 -1.05 0.6
--.CM2.Z. 1985-01-09T03:13:09.90 10.0 undecidable manual PG 106 0.0034 0.25 2.7
--.ARV.Z. 1985-01-09T03:13:07.00 10.0 undecidable manual PG 48 0.0026 -0.74 1
--.ASS.Z. 1985-01-09T03:13:06.50 10.0 positive manual PG 177 0.0021 0.01 2.8
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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