Earthquake with magnitude of Md 2.8 on date 15-10-1997 and time 14:50:08 (Italy) in region 5 km NE Sellano (PG)

A magnitude Md 2.8 earthquake occured in region: 5 km NE Sellano (PG), on

  • 15-10-1997 12:50:08 (UTC)
  • 15-10-1997 14:50:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.929, 12.951 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
Sellano PG 5 1079 1079
Monte Cavallo MC 8 145 1224
Preci PG 9 724 1948
Visso MC 11 1107 3055
Cerreto di Spoleto PG 12 1075 4130
Pieve Torina MC 15 1458 5588
Ussita MC 15 444 6032
Serravalle di Chienti MC 16 1070 7102
Fiordimonte MC 17 202 7304
Castelsantangelo sul Nera MC 17 281 7585
Trevi PG 17 8469 16054
Pievebovigliana MC 19 866 16920
Campello sul Clitunno PG 19 2442 19362
Muccia MC 19 915 20277
Vallo di Nera PG 19 364 20641
Norcia PG 19 4957 25598

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
50 Km E of Perugia (166134 inhabitants)
68 Km W of Teramo (54892 inhabitants)
74 Km NW of L'Aquila (69753 inhabitants)
89 Km NE of Viterbo (67173 inhabitants)
89 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 2.8
ML-VAX 2.1
1997-10-15
12:50:08
42.929 12.951 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 300679
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-15 12:50:08 ± 0.31
Latitude 42.9290 ± 0.0075
Longitude 12.9510 ± 0.0210
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 300679

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) 1901.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 150
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00227
Epicentral distance of station farthest from the epicenter (degree) 0.0123
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 300679
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:42:33

ML:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 300679
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. 1997-10-15T12:50:37.80 10.0 undecidable manual SG 350 0.007 0.59 0.2
--.SDI.Z. 1997-10-15T12:50:34.95 10.0 undecidable manual PN 151 0.0123 0.48 0.7
--.MNS.Z. 1997-10-15T12:50:30.60 10.0 undecidable manual SG 199 0.0052 -0.18 0.7
--.ARV.Z. 1997-10-15T12:50:29.47 10.0 undecidable manual SG 359 0.0051 -0.49 0.4
--.FB9.Z. 1997-10-15T12:50:25.11 10.0 undecidable manual PG 350 0.007 0.4 1.1
--.AQU.Z. 1997-10-15T12:50:22.55 10.0 undecidable manual PG 149 0.0059 -0.11 2
--.MNS.Z. 1997-10-15T12:50:20.88 10.0 undecidable manual PG 199 0.0052 -0.21 1.8
--.ARV.Z. 1997-10-15T12:50:20.27 10.0 undecidable manual PG 359 0.0051 -0.66 0.5
--.ASS.Z. 1997-10-15T12:50:18.36 10.0 undecidable manual SG 301 0.0023 -0.2 0.8
--.ASS.Z. 1997-10-15T12:50:14.57 10.0 undecidable manual PG 301 0.0023 0.22 1.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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