Earthquake with magnitude of Md 2.5 on date 04-10-1997 and time 17:25:15 (Italy) in region 5 km W Monte Cavallo (MC)

A magnitude Md 2.5 earthquake occured in region: 5 km W Monte Cavallo (MC), on

  • 04-10-1997 15:25:15 (UTC)
  • 04-10-1997 17:25:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0040, 12.9410 at 5 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
Monte Cavallo MC 5 145 145
Serravalle di Chienti MC 8 1070 1215
Pieve Torina MC 10 1458 2673
Muccia MC 12 915 3588
Sellano PG 13 1079 4667
Fiordimonte MC 13 202 4869
Pievebovigliana MC 14 866 5735
Visso MC 15 1107 6842
Sefro MC 16 422 7264
Preci PG 16 724 7988
Valtopina PG 16 1398 9386
Nocera Umbra PG 17 5839 15225
Ussita MC 17 444 15669
Fiastra MC 18 559 16228
Camerino MC 18 6974 23202
Acquacanina MC 19 121 23323
Pioraco MC 20 1134 24457
Foligno PG 20 57155 81612

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km E of Foligno (57155 inhabitants)
46 Km E of Perugia (166134 inhabitants)
55 Km NE of Terni (111501 inhabitants)
73 Km NW of Teramo (54892 inhabitants)
82 Km NW of L'Aquila (69753 inhabitants)
83 Km SW of Ancona (100861 inhabitants)
94 Km S of Fano (60888 inhabitants)
94 Km NE of Viterbo (67173 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 2.5
ML-VAX 1.7
1997-10-04
15:25:15
43.004 12.941 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 289419
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-04 15:25:15 ± 0.148
Latitude 43.0040 ± 0.0082
Longitude 12.9410 ± 0.0202
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 289419

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) 1873.7
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 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00194
Epicentral distance of station farthest from the epicenter (degree) 0.01295
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 289419
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:32:36

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 289419
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(km) Takeoff_angle Residual Weight
--.SDI.Z. 1997-10-04T15:25:41.70 10.0 undecidable manual PN 153 1.443 -0.05 1
--.MNS.Z. 1997-10-04T15:25:39.32 10.0 undecidable manual SG 197 0.6327 0.58 0.2
--.CRE.Z. 1997-10-04T15:25:35.00 10.0 undecidable manual PG 310 0.9435 0.7 0.2
--.ARV.Z. 1997-10-04T15:25:34.14 10.0 undecidable manual SG 0 0.4995 0.3 0.5
--.AQU.Z. 1997-10-04T15:25:30.00 10.0 undecidable manual PG 152 0.7326 -0.31 1
--.MNS.Z. 1997-10-04T15:25:28.85 10.0 undecidable manual PG 197 0.6327 0.11 1.6
--.ARV.Z. 1997-10-04T15:25:25.80 10.0 positive manual PG 0 0.4995 -0.11 3.1
--.ASS.Z. 1997-10-04T15:25:23.00 10.0 undecidable manual SG 285 0.2109 -0.7 0.1
--.ASS.Z. 1997-10-04T15:25:19.83 10.0 undecidable manual PG 285 0.2109 -0.23 1.3
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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