Earthquake with magnitude of Md 3.7 on date 26-09-1997 and time 16:54:25 (Italy) in region 2 km W Monte Cavallo (MC)

A magnitude Md 3.7 earthquake occured in region: 2 km W Monte Cavallo (MC), on

  • 26-09-1997 14:54:25 (UTC)
  • 26-09-1997 16:54:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.996, 12.98 at 4 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 2 145 145
Pieve Torina MC 8 1458 1603
Serravalle di Chienti MC 9 1070 2673
Fiordimonte MC 10 202 2875
Muccia MC 11 915 3790
Visso MC 11 1107 4897
Pievebovigliana MC 11 866 5763
Sellano PG 13 1079 6842
Preci PG 14 724 7566
Ussita MC 14 444 8010
Fiastra MC 15 559 8569
Acquacanina MC 16 121 8690
Sefro MC 17 422 9112
Camerino MC 17 6974 16086
Castelsantangelo sul Nera MC 18 281 16367
Valtopina PG 20 1398 17765

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Foligno (57155 inhabitants)
50 Km E of Perugia (166134 inhabitants)
55 Km NE of Terni (111501 inhabitants)
70 Km NW of Teramo (54892 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
94 Km S of Fano (60888 inhabitants)
96 Km NE of Viterbo (67173 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 3.7 1997-09-26
14:54:25
42.996 12.98 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 279909
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-09-26 14:54:25 ± 0.285
Latitude 42.9960 ± 0.0071
Longitude 12.9800 ± 0.0180
Depth (km) 4 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 279909

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) 1660.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
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) 0.00219
Epicentral distance of station farthest from the epicenter (degree) 0.01279
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

Md:3.7

Field Value
Value 3.7
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 279909
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:24:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SDI.Z. 1997-09-26T14:55:10.56 10.0 undecidable manual SN 154 0.0128 -1.35 0
--.CSNT.Z. 1997-09-26T14:55:09.69 10.0 undecidable manual SN 291 0.0118 0.32 0.6
--.RMP.Z. 1997-09-26T14:55:07.00 10.0 undecidable manual SN 189 0.0108 0.4 0.6
--.SFI.Z. 1997-09-26T14:55:07.69 10.0 undecidable manual SN 318 0.011 0.57 0.4
--.RSM.Z. 1997-09-26T14:55:02.00 10.0 undecidable manual SG 337 0.0091 0.68 0.4
--.PQ9.Z. 1997-09-26T14:55:01.51 10.0 undecidable manual SG 161 0.0091 -0.26 0.7
--.CRE.Z. 1997-09-26T14:54:58.75 10.0 undecidable manual SG 309 0.0087 -1.47 0
--.AQU.Z. 1997-09-26T14:54:52.29 10.0 undecidable manual SG 153 0.0064 0.43 0.6
--.SDI.Z. 1997-09-26T14:54:52.95 10.0 undecidable manual PN 154 0.0128 0.48 1.1
--.CSNT.Z. 1997-09-26T14:54:51.70 10.0 undecidable manual PN 291 0.0118 0.7 0.7
--.FB9.Z. 1997-09-26T14:54:51.52 10.0 undecidable manual SG 347 0.0064 -0.27 0.8
--.MNS.Z. 1997-09-26T14:54:49.90 10.0 undecidable manual SG 199 0.0058 0.08 0.9
--.SFI.Z. 1997-09-26T14:54:49.20 10.0 undecidable manual PN 318 0.011 -0.68 0.8
--.RMP.Z. 1997-09-26T14:54:48.86 10.0 undecidable manual PN 189 0.0108 -0.54 1.1
--.PQ9.Z. 1997-09-26T14:54:47.40 10.0 undecidable manual PG 161 0.0091 0.43 1.5
--.CRE.Z. 1997-09-26T14:54:46.30 10.0 undecidable manual PG 309 0.0087 0.58 1.2
--.RSM.Z. 1997-09-26T14:54:46.85 10.0 undecidable manual PG 337 0.0091 0.5 1.3
--.ARV.Z. 1997-09-26T14:54:44.90 10.0 undecidable manual SG 356 0.0045 -0.21 0.8
--.AQU.Z. 1997-09-26T14:54:40.79 10.0 undecidable manual PG 153 0.0064 -0.1 2.1
--.FB9.Z. 1997-09-26T14:54:40.86 10.0 undecidable manual PG 347 0.0064 0.01 2.2
--.MNS.Z. 1997-09-26T14:54:39.54 10.0 undecidable manual PG 199 0.0058 -0.17 2
--.ARV.Z. 1997-09-26T14:54:36.51 10.0 undecidable manual PG 356 0.0045 -0.48 1.4
--.ASS.Z. 1997-09-26T14:54:35.38 10.0 undecidable manual SG 285 0.0022 -0.19 0.8
--.ASS.Z. 1997-09-26T14:54:31.30 10.0 undecidable manual PG 285 0.0022 -0.19 2
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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