Earthquake with magnitude of Md 3.7 on date 14-10-1997 and time 21:34:17 (Italy) in region 2 km S Preci (PG)

A magnitude Md 3.7 earthquake occured in region: 2 km S Preci (PG), on

  • 14-10-1997 19:34:17 (UTC)
  • 14-10-1997 21:34:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.86, 13.034 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
Preci PG 2 724 724
Norcia PG 9 4957 5681
Visso MC 9 1107 6788
Sellano PG 9 1079 7867
Castelsantangelo sul Nera MC 11 281 8148
Cerreto di Spoleto PG 11 1075 9223
Ussita MC 13 444 9667
Monte Cavallo MC 15 145 9812
Cascia PG 16 3217 13029
Vallo di Nera PG 17 364 13393
Poggiodomo PG 18 117 13510

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km E of Foligno (57155 inhabitants)
46 Km NE of Terni (111501 inhabitants)
59 Km E of Perugia (166134 inhabitants)
59 Km W of Teramo (54892 inhabitants)
64 Km NW of L'Aquila (69753 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
93 Km SW of Ancona (100861 inhabitants)
99 Km N of Guidonia Montecelio (88673 inhabitants)
99 Km W of Montesilvano (53738 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
MLNET 3.8
1997-10-14
19:34:17
42.86 13.034 3 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 299489
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-14 19:34:17 ± 0.315
Latitude 42.8600 ± 0.0069
Longitude 13.0340 ± 0.0218
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 299489

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) 1933.1
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 18
Number of defining phases 18
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) 0.00308
Epicentral distance of station farthest from the epicenter (degree) 0.01263
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:3.7

Field Value
Value 3.7
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 299489
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:41:30

ML:3.8

Field Value
Value 3.8
Uncertainty
Num. used stations
Type of magnitude ML
Reference to an origin 299489
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
--.FB9.Z. 1997-10-14T19:34:48.00 10.0 undecidable manual SG 347 0.0076 0.31 0.5
--.CSNT.Z. 1997-10-14T19:34:44.40 10.0 undecidable manual PN 296 0.0126 0.45 0.7
--.SFI.Z. 1997-10-14T19:34:43.39 10.0 undecidable manual PN 320 0.0121 0.58 0.5
--.SDI.Z. 1997-10-14T19:34:42.52 10.0 undecidable manual PN 152 0.0115 0.65 0.5
--.ARV.Z. 1997-10-14T19:34:41.00 10.0 undecidable manual SG 353 0.0057 0.08 0.6
--.RSM.Z. 1997-10-14T19:34:40.55 10.0 undecidable manual PN 338 0.0103 0.54 0.6
--.AQU.Z. 1997-10-14T19:34:39.00 10.0 undecidable manual SG 151 0.0051 0.27 0.6
--.RDP.Z. 1997-10-14T19:34:39.44 10.0 undecidable manual PN 191 0.0101 -0.25 1.1
--.RMP.Z. 1997-10-14T19:34:38.53 10.0 undecidable manual PG 193 0.0096 -0.39 0.9
--.CRE.Z. 1997-10-14T19:34:38.80 10.0 undecidable manual PG 314 0.0098 -0.46 0.9
--.MNS.Z. 1997-10-14T19:34:37.00 10.0 undecidable manual SG 208 0.0049 -0.7 0.1
--.PQ9.Z. 1997-10-14T19:34:35.70 10.0 undecidable manual PG 161 0.0079 -0.21 1.4
--.FB9.Z. 1997-10-14T19:34:34.00 10.0 negative manual PG 347 0.0076 -0.77 0.9
--.ASS.Z. 1997-10-14T19:34:30.50 10.0 undecidable manual SG 305 0.0031 0.05 0.6
--.ARV.Z. 1997-10-14T19:34:30.40 10.0 undecidable manual PG 353 0.0057 -0.46 1
--.AQU.Z. 1997-10-14T19:34:30.00 10.0 undecidable manual PG 151 0.0051 0.4 1.1
--.MNS.Z. 1997-10-14T19:34:29.00 10.0 positive manual PG 208 0.0049 -0.01 3.2
--.ASS.Z. 1997-10-14T19:34:25.00 10.0 negative manual PG 305 0.0031 0.19 2.6
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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