Earthquake with magnitude of Md 3.4 on date 09-10-1997 and time 18:02:47 (UTC) in region 5 km W Monte Cavallo (MC)

A magnitude Md 3.4 earthquake occured in region: 5 km W Monte Cavallo (MC), on

  • 09-10-1997 18:02:47 (UTC)
  • 09-10-1997 20:02:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.98, 12.95 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 5 145 145
Serravalle di Chienti MC 10 1070 1215
Sellano PG 11 1079 2294
Pieve Torina MC 11 1458 3752
Visso MC 13 1107 4859
Fiordimonte MC 13 202 5061
Muccia MC 14 915 5976
Preci PG 14 724 6700
Pievebovigliana MC 14 866 7566
Ussita MC 16 444 8010
Valtopina PG 18 1398 9408
Cerreto di Spoleto PG 18 1075 10483
Fiastra MC 18 559 11042
Sefro MC 18 422 11464
Nocera Umbra PG 19 5839 17303
Acquacanina MC 19 121 17424
Castelsantangelo sul Nera MC 20 281 17705
Camerino MC 20 6974 24679
Trevi PG 20 8469 33148
Foligno PG 20 57155 90303

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km E of Foligno (57155 inhabitants)
47 Km E of Perugia (166134 inhabitants)
53 Km NE of Terni (111501 inhabitants)
72 Km NW of Teramo (54892 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
93 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
Rev 1000 Md 3.4
ML-VAX 2.0
1997-10-09
18:02:47
42.98 12.95 2 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 294569
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-09 18:02:47 ± 0.178
Latitude 42.98 ± 0.01
Longitude 12.95 ± 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 294569

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) 1217.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
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) 0.00202
Epicentral distance of station farthest from the epicenter (degree) 0.01166
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

Md:3.4

Field Value
Value 3.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 294569
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:37:09

ML:2

Field Value
Value 2
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 294569
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. 1997-10-09T18:03:14.50 10.0 undecidable manual SG 350 0.0065 0.3 0.5
--.SFI.Z. 1997-10-09T18:03:12.11 10.0 undecidable manual PN 319 0.0109 0.41 0.7
--.CSNT.Z. 1997-10-09T18:03:12.98 10.0 undecidable manual PN 292 0.0117 0.15 1.2
--.RDP.Z. 1997-10-09T18:03:12.25 10.0 undecidable manual PN 187 0.0111 0.31 0.9
--.MNS.Z. 1997-10-09T18:03:11.20 10.0 undecidable manual SG 197 0.0056 -0.08 0.7
--.RSM.Z. 1997-10-09T18:03:08.74 10.0 undecidable manual PG 339 0.0091 0.32 1
--.PQ9.Z. 1997-10-09T18:03:08.50 10.0 undecidable manual PG 160 0.0091 -0.02 1.5
--.ARV.Z. 1997-10-09T18:03:07.83 10.0 undecidable manual SG 359 0.0046 0.22 0.6
--.CRE.Z. 1997-10-09T18:03:06.64 10.0 undecidable manual PG 311 0.0087 -0.89 0.1
--.FB9.Z. 1997-10-09T18:03:02.57 10.0 undecidable manual PG 350 0.0065 -0.44 0.8
--.AQU.Z. 1997-10-09T18:03:02.91 10.0 undecidable manual PG 151 0.0064 0.04 1.7
--.MNS.Z. 1997-10-09T18:03:00.98 10.0 undecidable manual PG 197 0.0056 -0.34 1.1
--.ARV.Z. 1997-10-09T18:02:59.10 10.0 undecidable manual PG 359 0.0046 -0.19 1.5
--.ASS.Z. 1997-10-09T18:02:56.27 10.0 undecidable manual SG 290 0.002 -0.3 0.5
--.ASS.Z. 1997-10-09T18:02:53.11 10.0 negative manual PG 290 0.002 0.28 2.5
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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