Earthquake with magnitude of Md 2.9 on date 13-10-1997 and time 01:41:24 (Italy) in region 4 km W Preci (PG)

A magnitude Md 2.9 earthquake occured in region: 4 km W Preci (PG), on

  • 12-10-1997 23:41:24 (UTC)
  • 13-10-1997 01:41:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.896, 12.995 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
Preci PG 4 724 724
Sellano PG 6 1079 1803
Visso MC 9 1107 2910
Cerreto di Spoleto PG 11 1075 3985
Monte Cavallo MC 11 145 4130
Castelsantangelo sul Nera MC 13 281 4411
Ussita MC 13 444 4855
Norcia PG 14 4957 9812
Pieve Torina MC 17 1458 11270
Vallo di Nera PG 18 364 11634
Fiordimonte MC 18 202 11836
Campello sul Clitunno PG 20 2442 14278
Cascia PG 20 3217 17495
Serravalle di Chienti MC 20 1070 18565
Pievebovigliana MC 20 866 19431

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
55 Km E of Perugia (166134 inhabitants)
64 Km W of Teramo (54892 inhabitants)
69 Km NW of L'Aquila (69753 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
91 Km SW of Ancona (100861 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 2.9
ML-VAX 2.4
1997-10-12
23:41:24
42.896 12.995 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 297039
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-12 23:41:24 ± 0.343
Latitude 42.8960 ± 0.0083
Longitude 12.9950 ± 0.0238
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 297039

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) 2146.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 154
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.00267
Epicentral distance of station farthest from the epicenter (degree) 0.0123
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

Md:2.9

Field Value
Value 2.9
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 297039
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:39:20

ML:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 6
Type of magnitude ML
Reference to an origin 297039
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
--.FB9.Z. 1997-10-12T23:41:52.93 10.0 undecidable manual SG 348 0.0073 -0.3 0.6
--.CSNT.Z. 1997-10-12T23:41:50.47 10.0 undecidable manual PN 295 0.0123 0.55 0.8
--.RDP.Z. 1997-10-12T23:41:47.52 10.0 undecidable manual PN 190 0.0104 0.52 0.9
--.RMP.Z. 1997-10-12T23:41:46.42 10.0 undecidable manual PN 191 0.0099 0.11 1.5
--.ARV.Z. 1997-10-12T23:41:46.55 10.0 undecidable manual SG 356 0.0054 -0.02 0.8
--.CRE.Z. 1997-10-12T23:41:45.89 10.0 undecidable manual PG 313 0.0094 0.55 0.9
--.MNS.Z. 1997-10-12T23:41:44.65 10.0 undecidable manual SG 204 0.005 -0.55 0.4
--.PQ9.Z. 1997-10-12T23:41:43.47 10.0 undecidable manual PG 160 0.0083 0.45 1.2
--.FB9.Z. 1997-10-12T23:41:40.45 10.0 undecidable manual PG 348 0.0073 -0.48 1.2
--.AQU.Z. 1997-10-12T23:41:37.42 10.0 undecidable manual PG 150 0.0055 0.04 1.9
--.ARV.Z. 1997-10-12T23:41:36.68 10.0 undecidable manual PG 356 0.0054 -0.41 1.4
--.ASS.Z. 1997-10-12T23:41:35.50 10.0 undecidable manual SG 303 0.0027 -0.3 0.6
--.MNS.Z. 1997-10-12T23:41:35.14 10.0 undecidable manual PG 204 0.005 -1.16 0.2
--.ASS.Z. 1997-10-12T23:41:31.20 10.0 undecidable manual PG 303 0.0027 0.34 1.5
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