Earthquake with magnitude of Md 2.5 on date 06-10-1997 and time 12:38:29 (Italy) in region 6 km NE Sellano (PG)

A magnitude Md 2.5 earthquake occured in region: 6 km NE Sellano (PG), on

  • 06-10-1997 10:38:29 (UTC)
  • 06-10-1997 12:38:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9240, 12.9800 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 6 1079 1079
Preci PG 7 724 1803
Monte Cavallo MC 8 145 1948
Visso MC 9 1107 3055
Cerreto di Spoleto PG 13 1075 4130
Ussita MC 13 444 4574
Castelsantangelo sul Nera MC 15 281 4855
Pieve Torina MC 15 1458 6313
Fiordimonte MC 16 202 6515
Serravalle di Chienti MC 17 1070 7585
Norcia PG 17 4957 12542
Pievebovigliana MC 18 866 13408
Muccia MC 19 915 14323
Fiastra MC 19 559 14882
Trevi PG 20 8469 23351
Vallo di Nera PG 20 364 23715
Acquacanina MC 20 121 23836

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Foligno (57155 inhabitants)
49 Km NE of Terni (111501 inhabitants)
52 Km E of Perugia (166134 inhabitants)
66 Km W of Teramo (54892 inhabitants)
72 Km NW of L'Aquila (69753 inhabitants)
89 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 2.5
ML-VAX 1.8
1997-10-06
10:38:29
42.924 12.98 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 290819
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-06 10:38:29 ± 0.126
Latitude 42.9240 ± 0.0041
Longitude 12.9800 ± 0.0119
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 290819

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) 1076.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 204
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00243
Epicentral distance of station farthest from the epicenter (degree) 0.00696
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 290819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:33:51

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 290819
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(km) Takeoff_angle Residual Weight
--.FB9.Z. 1997-10-06T10:38:56.93 10.0 undecidable manual SG 349 0.777 -0.11 0.7
--.ARV.Z. 1997-10-06T10:38:50.26 10.0 undecidable manual SG 357 0.5661 -0.15 0.7
--.MNS.Z. 1997-10-06T10:38:50.81 10.0 undecidable manual SG 202 0.5772 0.2 0.6
--.FB9.Z. 1997-10-06T10:38:45.70 10.0 undecidable manual PG 349 0.777 0.48 0.3
--.ARV.Z. 1997-10-06T10:38:41.16 10.0 undecidable manual PG 357 0.5661 -0.23 1.4
--.MNS.Z. 1997-10-06T10:38:41.40 10.0 undecidable manual PG 202 0.5772 -0.11 1.9
--.ASS.Z. 1997-10-06T10:38:40.30 10.0 undecidable manual SG 299 0.2664 0.17 0.7
--.ASS.Z. 1997-10-06T10:38:35.11 10.0 undecidable manual PG 299 0.2664 -0.19 1.7
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download