Earthquake with magnitude of Md 2.4 on date 09-10-1997 and time 08:56:21 (Italy) in region 8 km W Monte Cavallo (MC)

A magnitude Md 2.4 earthquake occured in region: 8 km W Monte Cavallo (MC), on

  • 09-10-1997 06:56:21 (UTC)
  • 09-10-1997 08:56:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9850, 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 8 145 145
Serravalle di Chienti MC 11 1070 1215
Sellano PG 11 1079 2294
Pieve Torina MC 14 1458 3752
Valtopina PG 15 1398 5150
Muccia MC 16 915 6065
Preci PG 16 724 6789
Visso MC 16 1107 7896
Fiordimonte MC 16 202 8098
Foligno PG 17 57155 65253
Nocera Umbra PG 17 5839 71092
Pievebovigliana MC 17 866 71958
Trevi PG 17 8469 80427
Cerreto di Spoleto PG 18 1075 81502
Sefro MC 18 422 81924
Spello PG 19 8645 90569
Ussita MC 20 444 91013

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km E of Foligno (57155 inhabitants)
44 Km E of Perugia (166134 inhabitants)
52 Km NE of Terni (111501 inhabitants)
75 Km W of Teramo (54892 inhabitants)
81 Km NW of L'Aquila (69753 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
91 Km NE of Viterbo (67173 inhabitants)
96 Km S of Fano (60888 inhabitants)
99 Km SE of Arezzo (99543 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 2.4
ML-VAX 1.5
1997-10-09
06:56:21
42.985 12.905 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 294149
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-09 06:56:21 ± 0.073
Latitude 42.9850 ± 0.0031
Longitude 12.9050 ± 0.0065
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 294149

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) 633.2
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00178
Epicentral distance of station farthest from the epicenter (degree) 0.00639
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:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 294149
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:36:47

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 294149
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. 1997-10-09T06:56:44.64 10.0 undecidable manual SG 195 0.6216 -0.12 0.5
--.ARV.Z. 1997-10-09T06:56:41.60 10.0 undecidable manual SG 2 0.5106 -0.22 0.1
--.FB9.Z. 1997-10-09T06:56:37.00 10.0 undecidable manual PG 352 0.7104 0.23 0.4
--.MNS.Z. 1997-10-09T06:56:35.13 10.0 undecidable manual PG 195 0.6216 0.03 1.8
--.ARV.Z. 1997-10-09T06:56:33.30 10.0 undecidable manual PG 2 0.5106 -0.06 1.6
--.ASS.Z. 1997-10-09T06:56:29.72 10.0 undecidable manual SG 292 0.1998 -0.09 0.6
--.ASS.Z. 1997-10-09T06:56:26.52 10.0 undecidable manual PG 292 0.1998 0.05 2
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