Earthquake with magnitude of Md 3.3 on date 13-10-1997 and time 06:04:46 (Italy) in region 3 km W Monte Cavallo (MC)

A magnitude Md 3.3 earthquake occured in region: 3 km W Monte Cavallo (MC), on

  • 13-10-1997 04:04:46 (UTC)
  • 13-10-1997 06:04:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.98, 12.96 at 2 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 3 145 145
Pieve Torina MC 10 1458 1603
Serravalle di Chienti MC 10 1070 2673
Sellano PG 11 1079 3752
Visso MC 12 1107 4859
Fiordimonte MC 12 202 5061
Preci PG 13 724 5785
Muccia MC 13 915 6700
Pievebovigliana MC 13 866 7566
Ussita MC 15 444 8010
Fiastra MC 17 559 8569
Acquacanina MC 18 121 8690
Castelsantangelo sul Nera MC 18 281 8971
Cerreto di Spoleto PG 18 1075 10046
Sefro MC 19 422 10468
Valtopina PG 19 1398 11866
Camerino MC 19 6974 18840

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of Foligno (57155 inhabitants)
49 Km E of Perugia (166134 inhabitants)
53 Km NE of Terni (111501 inhabitants)
70 Km NW of Teramo (54892 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
96 Km S of Fano (60888 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
ML-VAX 2.5
1997-10-13
04:04:46
42.98 12.96 2 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 297339
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-13 04:04:46 ± 0.182
Latitude 42.98 ± 0.01
Longitude 12.96 ± 0.01
Depth (km) 2 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 297339

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) 1171.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 154
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
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) 0.0021
Epicentral distance of station farthest from the epicenter (degree) 0.01182
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

Md:3.3

Field Value
Value 3.3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 297339
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:39:36

ML:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 297339
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
--.FB9.Z. 1997-10-13T04:05:13.13 10.0 undecidable manual SG 349 0.0065 0.1 0.7
--.CSNT.Z. 1997-10-13T04:05:11.77 10.0 undecidable manual PN 292 0.0118 0.07 1.3
--.RDP.Z. 1997-10-13T04:05:11.18 10.0 undecidable manual PN 188 0.0111 0.55 0.3
--.MNS.Z. 1997-10-13T04:05:09.94 10.0 undecidable manual SG 199 0.0057 -0.11 0.7
--.PQ9.Z. 1997-10-13T04:05:07.37 10.0 undecidable manual PG 161 0.0091 0.28 1
--.CRE.Z. 1997-10-13T04:05:06.13 10.0 undecidable manual PG 311 0.0087 -0.3 1
--.ARV.Z. 1997-10-13T04:05:06.82 10.0 undecidable manual SG 358 0.0046 0.47 0.2
--.FB9.Z. 1997-10-13T04:05:01.58 10.0 undecidable manual PG 349 0.0065 -0.19 1.5
--.AQU.Z. 1997-10-13T04:05:01.19 10.0 undecidable manual PG 152 0.0063 -0.22 1.4
--.MNS.Z. 1997-10-13T04:04:59.51 10.0 undecidable manual PG 199 0.0057 -0.54 0.4
--.ARV.Z. 1997-10-13T04:04:57.58 10.0 undecidable manual PG 358 0.0046 -0.33 1
--.ASS.Z. 1997-10-13T04:04:55.50 10.0 undecidable manual SG 289 0.0021 -0.24 0.5
--.ASS.Z. 1997-10-13T04:04:52.00 10.0 positive manual PG 289 0.0021 0.21 2.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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