Earthquake with magnitude of Md 3.3 on date 16-10-1997 and time 22:47:50 (Italy) in region 6 km SW Monte Cavallo (MC)

A magnitude Md 3.3 earthquake occured in region: 6 km SW Monte Cavallo (MC), on

  • 16-10-1997 20:47:50 (UTC)
  • 16-10-1997 22:47:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.956, 12.953 at 3 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 6 145 145
Sellano PG 8 1079 1224
Preci PG 11 724 1948
Visso MC 11 1107 3055
Pieve Torina MC 13 1458 4513
Serravalle di Chienti MC 13 1070 5583
Fiordimonte MC 14 202 5785
Ussita MC 15 444 6229
Cerreto di Spoleto PG 15 1075 7304
Muccia MC 16 915 8219
Pievebovigliana MC 16 866 9085
Castelsantangelo sul Nera MC 18 281 9366
Trevi PG 19 8469 17835
Fiastra MC 19 559 18394
Valtopina PG 20 1398 19792
Acquacanina MC 20 121 19913

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km E of Foligno (57155 inhabitants)
49 Km E of Perugia (166134 inhabitants)
50 Km NE of Terni (111501 inhabitants)
70 Km W of Teramo (54892 inhabitants)
76 Km NW of L'Aquila (69753 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
92 Km NE of Viterbo (67173 inhabitants)
99 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 3.3
MLNET 3.6
1997-10-16
20:47:50
42.956 12.953 3 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 301929
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-16 20:47:50 ± 0.28
Latitude 42.9560 ± 0.0074
Longitude 12.9530 ± 0.0184
Depth (km) 3 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 301929

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) 1709.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
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) 0.01255
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

Md:3.3

Field Value
Value 3.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 301929
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:43:39

ML:3.6

Field Value
Value 3.6
Uncertainty
Num. used stations
Type of magnitude ML
Reference to an origin 301929
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 10:37:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SDI.Z. 1997-10-16T20:48:35.16 10.0 undecidable manual SN 152 0.0125 -0.65 0.3
--.RMP.Z. 1997-10-16T20:48:30.40 10.0 undecidable manual SN 189 0.0104 -0.09 0.7
--.PQ9.Z. 1997-10-16T20:48:26.35 10.0 undecidable manual SG 160 0.0089 1.12 0.1
--.CRE.Z. 1997-10-16T20:48:25.20 10.0 undecidable manual SG 312 0.0088 0.13 0.7
--.SDI.Z. 1997-10-16T20:48:17.43 10.0 undecidable manual PN 152 0.0125 0.89 0.4
--.FB9.Z. 1997-10-16T20:48:16.76 10.0 undecidable manual SG 350 0.0066 -0.64 0.4
--.AQU.Z. 1997-10-16T20:48:15.91 10.0 undecidable manual SG 150 0.0062 0.43 0.6
--.CSNT.Z. 1997-10-16T20:48:15.65 10.0 undecidable manual PN 293 0.0118 0.24 1.5
--.RDP.Z. 1997-10-16T20:48:14.46 10.0 undecidable manual PN 188 0.0108 0.51 1.1
--.SFI.Z. 1997-10-16T20:48:14.89 10.0 undecidable manual PN 319 0.0112 0.51 1.1
--.RMP.Z. 1997-10-16T20:48:12.73 10.0 undecidable manual PN 189 0.0104 -0.53 1.1
--.RSM.Z. 1997-10-16T20:48:12.10 10.0 undecidable manual PG 339 0.0093 0.79 0.6
--.MNS.Z. 1997-10-16T20:48:12.80 10.0 undecidable manual SG 199 0.0054 -0.07 0.8
--.ARV.Z. 1997-10-16T20:48:10.70 10.0 undecidable manual SG 359 0.0049 -0.15 0.8
--.PQ9.Z. 1997-10-16T20:48:09.90 10.0 undecidable manual PG 160 0.0089 -0.53 1.2
--.CRE.Z. 1997-10-16T20:48:09.78 10.0 undecidable manual PG 312 0.0088 -0.55 1.1
--.FB9.Z. 1997-10-16T20:48:05.46 10.0 undecidable manual PG 350 0.0066 -0.45 1.4
--.AQU.Z. 1997-10-16T20:48:04.49 10.0 undecidable manual PG 150 0.0062 -0.31 1.7
--.MNS.Z. 1997-10-16T20:48:02.58 10.0 undecidable manual PG 199 0.0054 -0.72 0.8
--.ARV.Z. 1997-10-16T20:48:01.89 10.0 undecidable manual PG 359 0.0049 -0.24 1.8
--.ASS.Z. 1997-10-16T20:47:59.25 10.0 undecidable manual SG 295 0.0022 -0.42 0.6
--.ASS.Z. 1997-10-16T20:47:55.98 10.0 positive manual PG 295 0.0022 0.3 3.4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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