Earthquake with magnitude of ML-MEDNET 5.5 on date 14-10-1997 and time 17:23:09 (Italy) in region 4 km NE Sellano (PG)

A magnitude ML-MEDNET 5.5 earthquake occured in region: 4 km NE Sellano (PG), on

  • 14-10-1997 15:23:09 (UTC)
  • 14-10-1997 17:23:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.91, 12.97 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
Sellano PG 4 1079 1079
Preci PG 7 724 1803
Monte Cavallo MC 10 145 1948
Visso MC 10 1107 3055
Cerreto di Spoleto PG 11 1075 4130
Ussita MC 15 444 4574
Castelsantangelo sul Nera MC 15 281 4855
Norcia PG 16 4957 9812
Pieve Torina MC 17 1458 11270
Vallo di Nera PG 18 364 11634
Fiordimonte MC 18 202 11836
Trevi PG 18 8469 20305
Campello sul Clitunno PG 18 2442 22747
Serravalle di Chienti MC 19 1070 23817
Pievebovigliana MC 20 866 24683

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
52 Km E of Perugia (166134 inhabitants)
66 Km W of Teramo (54892 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
89 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
Rev 1000 ML-MEDNET 5.5 1997-10-14
15:23:09
42.91 12.97 5 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 298759
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-14 15:23:09 ± 0.285
Latitude 42.91 ± 0.01
Longitude 12.97 ± 0.02
Depth (km) 5 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 298759

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) 1688.8
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 17
Number of defining phases 17
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) 0.00243
Epicentral distance of station farthest from the epicenter (degree) 0.01206
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:5.5

Field Value
Value 5.5
Uncertainty
Num. used stations
Type of magnitude ML
Reference to an origin 298759
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. 1997-10-14T15:23:35.12 10.0 negative manual PN 152 0.0121 0.64 0.6
--.CSNT.Z. 1997-10-14T15:23:34.81 10.0 negative manual PN 295 0.0121 0.36 1.4
--.SFI.Z. 1997-10-14T15:23:34.20 10.0 undecidable manual PN 320 0.0116 0.39 0.7
--.AQU.Z. 1997-10-14T15:23:32.86 10.0 undecidable manual SG 149 0.0057 0.38 0.3
--.ARV.Z. 1997-10-14T15:23:31.40 10.0 undecidable manual SG 358 0.0053 0.39 0.3
--.RDP.Z. 1997-10-14T15:23:31.42 10.0 undecidable manual PN 189 0.0104 -0.5 0.5
--.RSM.Z. 1997-10-14T15:23:30.76 10.0 undecidable manual PN 339 0.0098 -0.14 1.1
--.MNS.Z. 1997-10-14T15:23:30.50 10.0 undecidable manual SG 201 0.005 -0.03 0.5
--.RMP.Z. 1997-10-14T15:23:30.53 10.0 undecidable manual PN 190 0.01 -0.7 0.3
--.CRE.Z. 1997-10-14T15:23:29.45 10.0 undecidable manual PG 314 0.0092 -0.36 0.8
--.PQ9.Z. 1997-10-14T15:23:27.51 10.0 undecidable manual PG 159 0.0084 -0.66 0.3
--.FB9.Z. 1997-10-14T15:23:25.13 10.0 positive manual PG 349 0.0071 -0.4 1.6
--.AQU.Z. 1997-10-14T15:23:22.92 10.0 undecidable manual PG 149 0.0057 0.34 0.9
--.MNS.Z. 1997-10-14T15:23:21.10 10.0 positive manual PG 201 0.005 -0.09 2.6
--.ARV.Z. 1997-10-14T15:23:21.60 10.0 positive manual PG 358 0.0053 -0.13 2.5
--.ASS.Z. 1997-10-14T15:23:19.79 10.0 undecidable manual SG 303 0.0024 -0.11 0.5
--.ASS.Z. 1997-10-14T15:23:15.61 10.0 positive manual PG 303 0.0024 0.29 2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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