Earthquake with magnitude of Md 2.7 on date 16-10-1997 and time 05:15:28 (Italy) in region 5 km S Monte Cavallo (MC)

A magnitude Md 2.7 earthquake occured in region: 5 km S Monte Cavallo (MC), on

  • 16-10-1997 03:15:28 (UTC)
  • 16-10-1997 05:15:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.95, 12.989 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 5 145 145
Sellano PG 8 1079 1224
Visso MC 8 1107 2331
Preci PG 9 724 3055
Pieve Torina MC 12 1458 4513
Ussita MC 12 444 4957
Fiordimonte MC 13 202 5159
Serravalle di Chienti MC 14 1070 6229
Castelsantangelo sul Nera MC 15 281 6510
Pievebovigliana MC 15 866 7376
Muccia MC 16 915 8291
Cerreto di Spoleto PG 16 1075 9366
Fiastra MC 17 559 9925
Acquacanina MC 18 121 10046
Norcia PG 19 4957 15003

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Foligno (57155 inhabitants)
51 Km NE of Terni (111501 inhabitants)
52 Km E of Perugia (166134 inhabitants)
67 Km W of Teramo (54892 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
93 Km NE of Viterbo (67173 inhabitants)
100 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 2.7
ML-VAX 1.8
1997-10-16
03:15:28
42.95 12.989 3 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 301439
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-16 03:15:28 ± 0.353
Latitude 42.9500 ± 0.0076
Longitude 12.9890 ± 0.0227
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 301439

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) 2032.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 156
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
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) 0.00243
Epicentral distance of station farthest from the epicenter (degree) 0.01238
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

Md:2.7

Field Value
Value 2.7
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 301439
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:43:13

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 301439
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 Takeoff_angle Residual Weight
--.RDP.Z. 1997-10-16T03:16:08.61 10.0 undecidable manual SN 189 0.0108 -0.59 0.3
--.PQ9.Z. 1997-10-16T03:16:03.25 10.0 undecidable manual SG 161 0.0087 0.56 0.4
--.FB9.Z. 1997-10-16T03:15:55.25 10.0 undecidable manual SG 348 0.0068 -0.43 0.5
--.SDI.Z. 1997-10-16T03:15:54.51 10.0 undecidable manual PN 153 0.0124 0.28 1.3
--.CSNT.Z. 1997-10-16T03:15:54.24 10.0 undecidable manual PN 293 0.0121 0.54 0.8
--.RDP.Z. 1997-10-16T03:15:52.18 10.0 undecidable manual PN 189 0.0108 0.32 1.3
--.MNS.Z. 1997-10-16T03:15:50.17 10.0 undecidable manual SG 201 0.0054 -0.74 0.2
--.ARV.Z. 1997-10-16T03:15:49.64 10.0 undecidable manual SG 356 0.0049 0.64 0.3
--.PQ9.Z. 1997-10-16T03:15:48.60 10.0 undecidable manual PG 161 0.0087 0.5 1
--.FB9.Z. 1997-10-16T03:15:43.69 10.0 undecidable manual PG 348 0.0068 -0.36 1.6
--.MNS.Z. 1997-10-16T03:15:41.50 10.0 undecidable manual PG 201 0.0054 -0.24 1.9
--.AQU.Z. 1997-10-16T03:15:41.77 10.0 undecidable manual PG 152 0.006 -0.63 0.8
--.ARV.Z. 1997-10-16T03:15:39.88 10.0 undecidable manual PG 356 0.0049 -0.31 1.7
--.ASS.Z. 1997-10-16T03:15:38.62 10.0 undecidable manual SG 294 0.0024 -0.02 0.9
--.ASS.Z. 1997-10-16T03:15:34.35 10.0 undecidable manual PG 294 0.0024 0.14 2.1
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