Earthquake with magnitude of Md 2.4 on date 29-07-1985 and time 12:02:32 (Italy) in region 6 km W Sefro (MC)

A magnitude Md 2.4 earthquake occured in region: 6 km W Sefro (MC), on

  • 29-07-1985 10:02:32 (UTC)
  • 29-07-1985 12:02:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.14, 12.87 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
Sefro MC 6 422 422
Nocera Umbra PG 7 5839 6261
Fiuminata MC 8 1402 7663
Serravalle di Chienti MC 10 1070 8733
Pioraco MC 10 1134 9867
Gualdo Tadino PG 13 15208 25075
Valtopina PG 13 1398 26473
Esanatoglia MC 14 2034 28507
Muccia MC 15 915 29422
Camerino MC 16 6974 36396
Castelraimondo MC 17 4587 40983
Matelica MC 17 9981 50964
Pieve Torina MC 18 1458 52422
Monte Cavallo MC 19 145 52567
Pievebovigliana MC 19 866 53433
Gagliole MC 20 620 54053
Fossato di Vico PG 20 2840 56893

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NE of Foligno (57155 inhabitants)
39 Km E of Perugia (166134 inhabitants)
67 Km N of Terni (111501 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
80 Km S of Fano (60888 inhabitants)
86 Km S of Pesaro (94582 inhabitants)
86 Km NW of Teramo (54892 inhabitants)
88 Km E of Arezzo (99543 inhabitants)
97 Km NW of L'Aquila (69753 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 2.4 1985-07-29
10:02:32
43.14 12.87 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 11039
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-07-29 10:02:32 ± 0.185
Latitude 43.14 ± 0.01
Longitude 12.87 ± 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 11039

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) 2098.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.00688
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 11039
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:14:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.PO9.Z. 1985-07-29T10:02:52.00 10.0 undecidable manual SG 174 0.005 -0.65 0.2
--.MNS.Z. 1985-07-29T10:02:48.50 10.0 undecidable manual PG 190 0.0069 0.7 0.3
--.AR1.Z. 1985-07-29T10:02:47.00 10.0 undecidable manual SG 7 0.0032 0.82 0.2
--.PO9.Z. 1985-07-29T10:02:44.00 10.0 undecidable manual PG 174 0.005 -0.09 1.2
--.CM2.Z. 1985-07-29T10:02:41.50 10.0 undecidable manual SG 74 0.0018 0.64 0.4
--.AR1.Z. 1985-07-29T10:02:40.00 10.0 positive manual PG 7 0.0032 -0.36 2.3
--.AS1.Z. 1985-07-29T10:02:40.50 10.0 undecidable manual SG 244 0.0015 0.59 0.4
--.AS1.Z. 1985-07-29T10:02:36.50 10.0 positive manual PG 244 0.0015 -0.24 2.8
--.CM2.Z. 1985-07-29T10:02:36.90 10.0 undecidable manual PG 74 0.0018 -0.39 1.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download