Earthquake with magnitude of Md 2.6 on date 03-03-1985 and time 00:32:33 (Italy) in region 1 km N Monteleone di Spoleto (PG)

A magnitude Md 2.6 earthquake occured in region: 1 km N Monteleone di Spoleto (PG), on

  • 02-03-1985 23:32:33 (UTC)
  • 03-03-1985 00:32:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.66, 12.95 at 10 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
Monteleone di Spoleto PG 1 599 599
Poggiodomo PG 6 117 716
Cascia PG 8 3217 3933
Scheggino PG 11 461 4394
Leonessa RI 11 2435 6829
Polino TR 12 233 7062
Sant'Anatolia di Narco PG 12 564 7626
Ferentillo TR 14 1913 9539
Vallo di Nera PG 14 364 9903
Montefranco TR 17 1276 11179
Arrone TR 17 2763 13942
Cerreto di Spoleto PG 18 1075 15017
Morro Reatino RI 18 373 15390
Rivodutri RI 18 1253 16643
Cittareale RI 18 482 17125
Poggio Bustone RI 18 2055 19180
Norcia PG 19 4957 24137
Spoleto PG 19 38218 62355
Labro RI 19 374 62729
Posta RI 20 694 63423

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Terni (111501 inhabitants)
38 Km SE of Foligno (57155 inhabitants)
51 Km NW of L'Aquila (69753 inhabitants)
62 Km W of Teramo (54892 inhabitants)
67 Km SE of Perugia (166134 inhabitants)
74 Km E of Viterbo (67173 inhabitants)
76 Km N of Guidonia Montecelio (88673 inhabitants)
79 Km N of Tivoli (56533 inhabitants)
94 Km NE of Roma (2864731 inhabitants)
100 Km W of Montesilvano (53738 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 2.6
ML-VAX 2.2
1985-03-02
23:32:33
42.66 12.95 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 2869
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-03-02 23:32:33 ± 0.401
Latitude 42.66 ± 0.02
Longitude 12.95 ± 0.06
Depth (km) 10 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 2869

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) 5140.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.00073
Epicentral distance of station farthest from the epicenter (degree) 0.01085
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 2869
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:07:43

ML:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 2869
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
--.SD1.Z. 1985-03-02T23:33:12.00 10.0 undecidable manual SN 145 0.0103 0.91 0.2
--.AR1.Z. 1985-03-02T23:33:00.50 10.0 undecidable manual SG 359 0.0074 -1.6 0.1
--.CH1.Z. 1985-03-02T23:32:57.50 10.0 undecidable manual PN? 323 0.0108 1.49 0.1
--.SD1.Z. 1985-03-02T23:32:55.50 10.0 undecidable manual PN 145 0.0103 0.37 0.9
--.AR1.Z. 1985-03-02T23:32:50.80 10.0 undecidable manual PG 359 0.0074 0.86 0.8
--.AS1.Z. 1985-03-02T23:32:49.50 10.0 undecidable manual SG 331 0.004 -0.38 0.8
--.MNS.Z. 1985-03-02T23:32:46.20 10.0 undecidable manual SG 215 0.003 0.02 0.9
--.AS1.Z. 1985-03-02T23:32:42.20 10.0 negative manual PG 331 0.004 -0.68 2.2
--.MNS.Z. 1985-03-02T23:32:40.20 10.0 positive manual PG 215 0.003 -0.55 2.4
--.AQU.Z. 1985-03-02T23:32:40.50 10.0 undecidable manual PG 132 0.004 -2.36 0.1
--.PO9.Z. 1985-03-02T23:32:38.20 10.0 undecidable manual SG 183 0.0007 0.06 0.6
--.PO9.Z. 1985-03-02T23:32:36.20 10.0 positive manual PG 183 0.0007 0.1 2.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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