Earthquake with magnitude of Md 4.7 on date 12-10-1997 and time 13:08:35 (Italy) in region 3 km NW Preci (PG)

A magnitude Md 4.7 earthquake occured in region: 3 km NW Preci (PG), on

  • 12-10-1997 11:08:35 (UTC)
  • 12-10-1997 13:08:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9, 13.01 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
Preci PG 3 724 724
Sellano PG 7 1079 1803
Visso MC 8 1107 2910
Monte Cavallo MC 11 145 3055
Cerreto di Spoleto PG 11 1075 4130
Castelsantangelo sul Nera MC 12 281 4411
Ussita MC 12 444 4855
Norcia PG 14 4957 9812
Pieve Torina MC 17 1458 11270
Fiordimonte MC 17 202 11472
Vallo di Nera PG 18 364 11836
Pievebovigliana MC 20 866 12702
Fiastra MC 20 559 13261
Cascia PG 20 3217 16478
Serravalle di Chienti MC 20 1070 17548

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
56 Km E of Perugia (166134 inhabitants)
63 Km W of Teramo (54892 inhabitants)
69 Km NW of L'Aquila (69753 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
91 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 4.7
ML-MEDNET 5.1
1997-10-12
11:08:35
42.9 13.01 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 296079
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-12 11:08:35 ± 0.123
Latitude 42.90 ± 0.01
Longitude 13.01 ± 0.02
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 296079

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) 1611.7
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 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00275
Epicentral distance of station farthest from the epicenter (degree) 0.01238
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

Md:4.7

Field Value
Value 4.7
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 296079
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:38:29

ML:5.1

Field Value
Value 5.1
Uncertainty
Num. used stations
Type of magnitude ML
Reference to an origin 296079
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
--.CSNT.Z. 1997-10-12T11:09:01.35 10.0 positive manual PN 295 0.0124 0.32 1.4
--.PGD.Z. 1997-10-12T11:09:01.26 10.0 undecidable manual PN 316 0.0121 0.56 0.3
--.SFI.Z. 1997-10-12T11:09:00.72 10.0 undecidable manual PN 320 0.0117 0.57 0.3
--.SDI.Z. 1997-10-12T11:09:00.59 10.0 undecidable manual PN 152 0.0119 0.24 0.8
--.ARV.Z. 1997-10-12T11:08:58.18 10.0 undecidable manual SG 355 0.0054 0.64 0.1
--.RDP.Z. 1997-10-12T11:08:57.70 10.0 negative manual PN 190 0.0104 -0.33 1.5
--.AQU.Z. 1997-10-12T11:08:57.20 10.0 undecidable manual SG 151 0.0055 -0.71 0.1
--.RSM.Z. 1997-10-12T11:08:57.77 10.0 undecidable manual PN 338 0.01 0.43 0.6
--.MNS.Z. 1997-10-12T11:08:56.68 10.0 undecidable manual SG 205 0.005 0.37 0.3
--.RMP.Z. 1997-10-12T11:08:56.92 10.0 undecidable manual PN 191 0.01 -0.42 0.6
--.CRE.Z. 1997-10-12T11:08:55.95 10.0 undecidable manual PG 313 0.0095 -0.56 0.4
--.PQ9.Z. 1997-10-12T11:08:53.72 10.0 negative manual PG 161 0.0083 -0.3 1.8
--.FB9.Z. 1997-10-12T11:08:51.61 10.0 positive manual PG 347 0.0073 -0.4 1.5
--.AQU.Z. 1997-10-12T11:08:48.87 10.0 negative manual PG 151 0.0055 0.52 1
--.MNS.Z. 1997-10-12T11:08:47.54 10.0 negative manual PG 205 0.005 0.11 2.4
--.ARV.Z. 1997-10-12T11:08:47.93 10.0 positive manual PG 355 0.0054 -0.21 2.2
--.ASS.Z. 1997-10-12T11:08:47.00 10.0 undecidable manual SG 302 0.0028 -0.29 0.4
--.ASS.Z. 1997-10-12T11:08:42.11 10.0 positive manual PG 302 0.0028 -0.11 2.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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