Earthquake with magnitude of Md 3.3 on date 09-10-1997 and time 05:31:51 (UTC) in region 5 km W Monte Cavallo (MC)

A magnitude Md 3.3 earthquake occured in region: 5 km W Monte Cavallo (MC), on

  • 09-10-1997 05:31:51 (UTC)
  • 09-10-1997 07:31:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.01, 12.95 at 3 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 7 1070 1215
Pieve Torina MC 9 1458 2673
Muccia MC 11 915 3588
Fiordimonte MC 12 202 3790
Pievebovigliana MC 13 866 4656
Sellano PG 14 1079 5735
Visso MC 15 1107 6842
Sefro MC 15 422 7264
Valtopina PG 16 1398 8662
Preci PG 17 724 9386
Nocera Umbra PG 17 5839 15225
Camerino MC 17 6974 22199
Ussita MC 17 444 22643
Fiastra MC 17 559 23202
Acquacanina MC 19 121 23323
Pioraco MC 19 1134 24457
Fiuminata MC 20 1402 25859

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of Foligno (57155 inhabitants)
47 Km E of Perugia (166134 inhabitants)
56 Km NE of Terni (111501 inhabitants)
73 Km NW of Teramo (54892 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
82 Km NW of L'Aquila (69753 inhabitants)
93 Km S of Fano (60888 inhabitants)
95 Km NE of Viterbo (67173 inhabitants)
100 Km S of Pesaro (94582 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 3.3 1997-10-09
05:31:51
43.01 12.95 3 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 294109
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-09 05:31:51 ± 0.197
Latitude 43.01 ± 0.01
Longitude 12.95 ± 0.01
Depth (km) 3 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 294109

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) 1342.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00194
Epicentral distance of station farthest from the epicenter (degree) 0.01158
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

Md:3.3

Field Value
Value 3.3
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 294109
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:36:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.FB9.Z. 1997-10-09T05:32:17.28 10.0 undecidable manual SG 349 0.0062 0.39 0.4
--.CSNT.Z. 1997-10-09T05:32:16.59 10.0 undecidable manual PN 291 0.0116 0.28 0.9
--.RDP.Z. 1997-10-09T05:32:16.37 10.0 undecidable manual PN 187 0.0113 0.4 0.7
--.SFI.Z. 1997-10-09T05:32:15.22 10.0 undecidable manual PN 318 0.0107 0.2 1.1
--.MNS.Z. 1997-10-09T05:32:15.85 10.0 undecidable manual SG 197 0.0059 0.05 0.6
--.PQ9.Z. 1997-10-09T05:32:12.49 10.0 undecidable manual PG 160 0.0094 -0.2 1.2
--.RSM.Z. 1997-10-09T05:32:11.95 10.0 undecidable manual PG 338 0.0088 0.39 0.8
--.CRE.Z. 1997-10-09T05:32:10.11 10.0 undecidable manual PG 310 0.0085 -0.72 0.2
--.ARV.Z. 1997-10-09T05:32:10.88 10.0 undecidable manual SG 359 0.0044 0.71 0.1
--.AQU.Z. 1997-10-09T05:32:07.40 10.0 undecidable manual PG 152 0.0066 0.03 1.6
--.MNS.Z. 1997-10-09T05:32:05.29 10.0 undecidable manual PG 197 0.0059 -0.2 1.4
--.FB9.Z. 1997-10-09T05:32:05.60 10.0 positive manual PG 349 0.0062 -0.52 1.2
--.ARV.Z. 1997-10-09T05:32:02.13 10.0 undecidable manual PG 359 0.0044 -0.11 1.6
--.ASS.Z. 1997-10-09T05:31:59.60 10.0 undecidable manual SG 283 0.0019 -0.34 0.4
--.ASS.Z. 1997-10-09T05:31:56.52 10.0 positive manual PG 283 0.0019 0.18 2.8
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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