Earthquake with magnitude of Md 2.0 on date 01-10-1997 and time 06:58:56 (Italy) in region 9 km W Monte Cavallo (MC)

A magnitude Md 2.0 earthquake occured in region: 9 km W Monte Cavallo (MC), on

  • 01-10-1997 04:58:56 (UTC)
  • 01-10-1997 06:58:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9660, 12.9050 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 9 145 145
Sellano PG 9 1079 1224
Serravalle di Chienti MC 13 1070 2294
Preci PG 15 724 3018
Pieve Torina MC 15 1458 4476
Visso MC 16 1107 5583
Valtopina PG 16 1398 6981
Trevi PG 16 8469 15450
Cerreto di Spoleto PG 16 1075 16525
Foligno PG 16 57155 73680
Fiordimonte MC 17 202 73882
Muccia MC 17 915 74797
Pievebovigliana MC 18 866 75663
Nocera Umbra PG 19 5839 81502
Spello PG 19 8645 90147
Ussita MC 19 444 90591
Campello sul Clitunno PG 19 2442 93033

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km E of Foligno (57155 inhabitants)
45 Km E of Perugia (166134 inhabitants)
50 Km NE of Terni (111501 inhabitants)
74 Km W of Teramo (54892 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
89 Km NE of Viterbo (67173 inhabitants)
98 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 2.0
ML-VAX 1.5
1997-10-01
04:58:56
42.966 12.905 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 286249
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-01 04:58:56 ± 0.285
Latitude 42.9660 ± 0.0127
Longitude 12.9050 ± 0.0256
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 286249

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) 2516.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 192
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.00186
Epicentral distance of station farthest from the epicenter (degree) 0.00656
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 286249
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:29:48

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 286249
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
--.MNS.Z. 1997-10-01T04:59:18.00 10.0 undecidable manual SG 195 0.5994 -0.99 0.1
--.ARV.Z. 1997-10-01T04:59:16.44 10.0 undecidable manual SG 2 0.5328 -0.26 0.7
--.FB9.Z. 1997-10-01T04:59:12.16 10.0 undecidable manual PG 352 0.7326 0.23 1.5
--.MNS.Z. 1997-10-01T04:59:10.00 10.0 undecidable manual PG 195 0.5994 0.42 1.2
--.ARV.Z. 1997-10-01T04:59:07.94 10.0 undecidable manual PG 2 0.5328 -0.31 1.6
--.ASS.Z. 1997-10-01T04:59:04.43 10.0 undecidable manual SG 297 0.2109 -0.5 0.4
--.ASS.Z. 1997-10-01T04:59:01.82 10.0 undecidable manual PG 297 0.2109 0.36 1.5
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download