Earthquake with magnitude of Md 2.3 on date 06-03-1985 and time 00:44:59 (Italy) in region 4 km W Scheggino (PG)

A magnitude Md 2.3 earthquake occured in region: 4 km W Scheggino (PG), on

  • 05-03-1985 23:44:59 (UTC)
  • 06-03-1985 00:44:59 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7, 12.78 at 7 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
Scheggino PG 4 461 461
Spoleto PG 5 38218 38679
Sant'Anatolia di Narco PG 6 564 39243
Ferentillo TR 9 1913 41156
Vallo di Nera PG 10 364 41520
Montefranco TR 12 1276 42796
Poggiodomo PG 13 117 42913
Campello sul Clitunno PG 13 2442 45355
Arrone TR 13 2763 48118
Polino TR 14 233 48351
Monteleone di Spoleto PG 15 599 48950
Castel Ritaldi PG 16 3278 52228
Cerreto di Spoleto PG 17 1075 53303
Cascia PG 19 3217 56520
Acquasparta TR 19 4778 61298
Terni TR 19 111501 172799
Trevi PG 20 8469 181268
Labro RI 20 374 181642

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NE of Terni (111501 inhabitants)
29 Km S of Foligno (57155 inhabitants)
55 Km SE of Perugia (166134 inhabitants)
64 Km NE of Viterbo (67173 inhabitants)
64 Km NW of L'Aquila (69753 inhabitants)
76 Km W of Teramo (54892 inhabitants)
78 Km N of Guidonia Montecelio (88673 inhabitants)
82 Km N of Tivoli (56533 inhabitants)
93 Km N of Roma (2864731 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 2.3 1985-03-05
23:44:59
42.7 12.78 7 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 3049
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-03-05 23:44:59 ± 0.274
Latitude 42.70 ± 0.01
Longitude 12.78 ± 0.04
Depth (km) 7 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 3049

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) 3336.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.01125
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 3049
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:07:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.AR1.Z. 1985-03-05T23:45:27.50 10.0 undecidable manual SG 8 0.0072 -0.18 0.7
--.SD1.Z. 1985-03-05T23:45:22.50 10.0 undecidable manual PN? 142 0.0113 -0.63 0.4
--.AS1.Z. 1985-03-05T23:45:15.00 10.0 undecidable manual SG 345 0.0033 1.22 0.3
--.AR1.Z. 1985-03-05T23:45:14.50 10.0 undecidable manual PG 8 0.0072 -1.2 0.8
--.AQU.Z. 1985-03-05T23:45:13.00 10.0 undecidable manual PG 127 0.0052 1.5 0.6
--.MNS.Z. 1985-03-05T23:45:12.50 10.0 undecidable manual SG 193 0.0029 0.34 0.9
--.AS1.Z. 1985-03-05T23:45:08.00 10.0 undecidable manual PG 345 0.0033 0.32 2.1
--.PO9.Z. 1985-03-05T23:45:07.00 10.0 undecidable manual SG 137 0.0015 0.53 0.9
--.MNS.Z. 1985-03-05T23:45:06.50 10.0 undecidable manual PG 193 0.0029 -0.25 2.2
--.PO9.Z. 1985-03-05T23:45:02.50 10.0 undecidable manual PG 137 0.0015 -0.96 1.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
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