Earthquake with magnitude of Md 2.0 on date 27-09-1997 and time 21:12:13 (Italy) in region 4 km W Monte Cavallo (MC)

A magnitude Md 2.0 earthquake occured in region: 4 km W Monte Cavallo (MC), on

  • 27-09-1997 19:12:13 (UTC)
  • 27-09-1997 21:12:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9900, 12.9510 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 4 145 145
Serravalle di Chienti MC 9 1070 1215
Pieve Torina MC 10 1458 2673
Sellano PG 11 1079 3752
Fiordimonte MC 13 202 3954
Muccia MC 13 915 4869
Visso MC 13 1107 5976
Pievebovigliana MC 14 866 6842
Preci PG 14 724 7566
Ussita MC 16 444 8010
Fiastra MC 18 559 8569
Sefro MC 18 422 8991
Valtopina PG 18 1398 10389
Nocera Umbra PG 19 5839 16228
Acquacanina MC 19 121 16349
Camerino MC 19 6974 23323
Cerreto di Spoleto PG 19 1075 24398
Castelsantangelo sul Nera MC 20 281 24679

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km E of Foligno (57155 inhabitants)
48 Km E of Perugia (166134 inhabitants)
54 Km NE of Terni (111501 inhabitants)
72 Km NW of Teramo (54892 inhabitants)
80 Km NW of L'Aquila (69753 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
95 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 2.0
1997-09-27
19:12:13
42.99 12.951 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 282149
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-09-27 19:12:13 ± 0.362
Latitude 42.9900 ± 0.0129
Longitude 12.9510 ± 0.0373
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 282149

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) 3352.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 198
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.00202
Epicentral distance of station farthest from the epicenter (degree) 0.01166
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 282149
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:26:14

ML:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 282149
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
--.CSNT.Z. 1997-09-27T19:12:38.85 10.0 undecidable manual PN 292 1.2987 0.6 1
--.FB9.Z. 1997-09-27T19:12:38.96 10.0 undecidable manual SG 349 0.7104 -0.34 0.6
--.SFI.Z. 1997-09-27T19:12:38.82 10.0 undecidable manual PN 318 1.2099 1.76 0.1
--.MNS.Z. 1997-09-27T19:12:36.61 10.0 undecidable manual SG 198 0.6327 -0.26 0.7
--.CRE.Z. 1997-09-27T19:12:33.42 10.0 undecidable manual PG 310 0.9546 0.39 1.4
--.ARV.Z. 1997-09-27T19:12:32.56 10.0 undecidable manual SG 359 0.4995 -0.18 0.7
--.FB9.Z. 1997-09-27T19:12:28.00 10.0 undecidable manual PG 349 0.7104 -0.42 1.4
--.MNS.Z. 1997-09-27T19:12:26.63 10.0 undecidable manual PG 198 0.6327 -0.38 1.5
--.ARV.Z. 1997-09-27T19:12:24.33 10.0 undecidable manual PG 359 0.4995 -0.3 1.5
--.ASS.Z. 1997-09-27T19:12:21.50 10.0 undecidable manual SG 288 0.222 -1.07 0.2
--.ASS.Z. 1997-09-27T19:12:18.78 10.0 undecidable manual PG 288 0.222 0.02 1.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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