Earthquake with magnitude of Md 2.3 on date 01-10-1997 and time 12:00:44 (Italy) in region 7 km SW Monte Cavallo (MC)

A magnitude Md 2.3 earthquake occured in region: 7 km SW Monte Cavallo (MC), on

  • 01-10-1997 10:00:44 (UTC)
  • 01-10-1997 12:00:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9630, 12.9320 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 7 145 145
Sellano PG 8 1079 1224
Serravalle di Chienti MC 12 1070 2294
Preci PG 13 724 3018
Pieve Torina MC 13 1458 4476
Visso MC 13 1107 5583
Fiordimonte MC 15 202 5785
Cerreto di Spoleto PG 16 1075 6860
Muccia MC 16 915 7775
Pievebovigliana MC 17 866 8641
Ussita MC 17 444 9085
Trevi PG 18 8469 17554
Valtopina PG 18 1398 18952
Foligno PG 19 57155 76107
Castelsantangelo sul Nera MC 20 281 76388

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km E of Foligno (57155 inhabitants)
47 Km E of Perugia (166134 inhabitants)
50 Km NE of Terni (111501 inhabitants)
72 Km W of Teramo (54892 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
91 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 2.3
ML-VAX 1.6
1997-10-01
10:00:44
42.963 12.932 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 286429
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-01 10:00:44 ± 0.213
Latitude 42.9630 ± 0.0073
Longitude 12.9320 ± 0.0190
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 286429

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) 1742.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 196
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00664
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 286429
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:29:58

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 286429
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
--.FB9.Z. 1997-10-01T10:01:10.47 10.0 undecidable manual SG 351 0.7326 -0.07 0.6
--.MNS.Z. 1997-10-01T10:01:06.52 10.0 undecidable manual SG 197 0.5994 0.19 0.7
--.ARV.Z. 1997-10-01T10:01:03.94 10.0 undecidable manual SG 0 0.5328 -0.13 0.7
--.FB9.Z. 1997-10-01T10:01:00.32 10.0 undecidable manual PG 351 0.7326 1 0.3
--.MNS.Z. 1997-10-01T10:00:56.72 10.0 undecidable manual PG 197 0.5994 -0.17 1.8
--.ARV.Z. 1997-10-01T10:00:55.11 10.0 undecidable manual PG 0 0.5328 -0.48 1
--.ASS.Z. 1997-10-01T10:00:52.77 10.0 undecidable manual SG 295 0.222 -0.14 0.8
--.ASS.Z. 1997-10-01T10:00:49.25 10.0 undecidable manual PG 295 0.222 0.11 2.1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download