Earthquake with magnitude of Md 2.3 on date 09-10-1997 and time 09:17:06 (Italy) in region 3 km SW Monte Cavallo (MC)

A magnitude Md 2.3 earthquake occured in region: 3 km SW Monte Cavallo (MC), on

  • 09-10-1997 07:17:06 (UTC)
  • 09-10-1997 09:17:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9700, 12.9880 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 3 145 145
Visso MC 9 1107 1252
Pieve Torina MC 10 1458 2710
Sellano PG 10 1079 3789
Preci PG 11 724 4513
Fiordimonte MC 11 202 4715
Serravalle di Chienti MC 12 1070 5785
Ussita MC 13 444 6229
Pievebovigliana MC 13 866 7095
Muccia MC 13 915 8010
Fiastra MC 16 559 8569
Castelsantangelo sul Nera MC 16 281 8850
Acquacanina MC 17 121 8971
Cerreto di Spoleto PG 18 1075 10046
Camerino MC 20 6974 17020
Bolognola MC 20 142 17162
Sefro MC 20 422 17584

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Foligno (57155 inhabitants)
51 Km E of Perugia (166134 inhabitants)
53 Km NE of Terni (111501 inhabitants)
68 Km NW of Teramo (54892 inhabitants)
77 Km NW of L'Aquila (69753 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
95 Km NE of Viterbo (67173 inhabitants)
97 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 1.5
1997-10-09
07:17:06
42.97 12.988 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 294189
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-09 07:17:06 ± 0.203
Latitude 42.9700 ± 0.0082
Longitude 12.9880 ± 0.0307
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 294189

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) 2655.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 204
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00235
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 3
Type of magnitude Md
Reference to an origin 294189
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:36:49

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 294189
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. 1997-10-09T07:17:29.25 10.0 undecidable manual SG 200 0.6216 -0.28 0.4
--.ARV.Z. 1997-10-09T07:17:26.76 10.0 undecidable manual SG 356 0.5217 0.34 0.4
--.FB9.Z. 1997-10-09T07:17:21.55 10.0 undecidable manual PG 347 0.7326 -0.33 0.8
--.MNS.Z. 1997-10-09T07:17:19.91 10.0 undecidable manual PG 200 0.6216 0.1 1.5
--.ARV.Z. 1997-10-09T07:17:18.00 10.0 positive manual PG 356 0.5217 -0.02 3.4
--.ASS.Z. 1997-10-09T07:17:16.21 10.0 undecidable manual SG 290 0.2553 -0.57 0.1
--.ASS.Z. 1997-10-09T07:17:12.94 10.0 undecidable manual PG 290 0.2553 0.48 0.5
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