Earthquake with magnitude of Md 2.3 on date 07-10-1997 and time 14:52:02 (Italy) in region 8 km NW Sellano (PG)

A magnitude Md 2.3 earthquake occured in region: 8 km NW Sellano (PG), on

  • 07-10-1997 12:52:02 (UTC)
  • 07-10-1997 14:52:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9540, 12.8850 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 8 1079 1079
Monte Cavallo MC 11 145 1224
Trevi PG 14 8469 9693
Serravalle di Chienti MC 14 1070 10763
Foligno PG 15 57155 67918
Preci PG 15 724 68642
Cerreto di Spoleto PG 15 1075 69717
Valtopina PG 16 1398 71115
Visso MC 17 1107 72222
Pieve Torina MC 17 1458 73680
Campello sul Clitunno PG 17 2442 76122
Spello PG 18 8645 84767
Nocera Umbra PG 19 5839 90606
Fiordimonte MC 19 202 90808
Muccia MC 19 915 91723
Montefalco PG 20 5679 97402

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km E of Foligno (57155 inhabitants)
44 Km E of Perugia (166134 inhabitants)
48 Km NE of Terni (111501 inhabitants)
75 Km W of Teramo (54892 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
87 Km NE of Viterbo (67173 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
99 Km SE of Arezzo (99543 inhabitants)
100 Km S of Fano (60888 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 2.3
ML-VAX 1.5
1997-10-07
12:52:02
42.954 12.885 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 292449
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-07 12:52:02 ± 0.213
Latitude 42.9540 ± 0.0075
Longitude 12.8850 ± 0.0234
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 292449

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) 2076.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 190
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00178
Epicentral distance of station farthest from the epicenter (degree) 0.00664
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 292449
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:35:17

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 292449
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. 1997-10-07T12:52:29.78 10.0 undecidable manual SG 353 0.7326 0.5 0.4
--.MNS.Z. 1997-10-07T12:52:24.34 10.0 undecidable manual SG 194 0.5883 -0.02 0.9
--.ARV.Z. 1997-10-07T12:52:22.62 10.0 undecidable manual SG 4 0.5439 -0.38 0.6
--.FB9.Z. 1997-10-07T12:52:18.62 10.0 undecidable manual PG 353 0.7326 0.62 0.7
--.MNS.Z. 1997-10-07T12:52:15.14 10.0 undecidable manual PG 194 0.5883 -0.02 2.1
--.ARV.Z. 1997-10-07T12:52:13.74 10.0 undecidable manual PG 4 0.5439 -0.64 0.8
--.ASS.Z. 1997-10-07T12:52:10.00 10.0 undecidable manual SG 302 0.1998 -0.55 0.4
--.ASS.Z. 1997-10-07T12:52:07.40 10.0 undecidable manual PG 302 0.1998 0.21 2
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