Earthquake with magnitude of Md 2.3 on date 13-10-1997 and time 14:53:59 (Italy) in region 4 km W Sellano (PG)

A magnitude Md 2.3 earthquake occured in region: 4 km W Sellano (PG), on

  • 13-10-1997 12:53:59 (UTC)
  • 13-10-1997 14:53:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9050, 12.8830 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
Cerreto di Spoleto PG 10 1075 2154
Trevi PG 11 8469 10623
Campello sul Clitunno PG 13 2442 13065
Preci PG 13 724 13789
Monte Cavallo MC 14 145 13934
Vallo di Nera PG 15 364 14298
Foligno PG 16 57155 71453
Visso MC 17 1107 72560
Montefalco PG 19 5679 78239
Castel Ritaldi PG 19 3278 81517
Sant'Anatolia di Narco PG 19 564 82081
Serravalle di Chienti MC 20 1070 83151
Spello PG 20 8645 91796

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km E of Foligno (57155 inhabitants)
43 Km NE of Terni (111501 inhabitants)
46 Km E of Perugia (166134 inhabitants)
72 Km W of Teramo (54892 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
84 Km NE of Viterbo (67173 inhabitants)
95 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 2.3 1997-10-13
12:53:59
42.905 12.883 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 297799
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-13 12:53:59 ± 0.304
Latitude 42.9050 ± 0.0106
Longitude 12.8830 ± 0.0359
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 297799

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) 3154.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 191
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) 0.00202
Epicentral distance of station farthest from the epicenter (degree) 0.00704
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 297799
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:40:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FB9.Z. 1997-10-13T12:54:28.00 10.0 undecidable manual SG 354 0.777 0.2 0.7
--.MNS.Z. 1997-10-13T12:54:20.00 10.0 undecidable manual SG 195 0.5439 0.25 0.8
--.ARV.Z. 1997-10-13T12:54:20.50 10.0 undecidable manual SG 4 0.5883 -1.03 0.1
--.FB9.Z. 1997-10-13T12:54:17.00 10.0 undecidable manual PG 354 0.777 1.15 0.4
--.ARV.Z. 1997-10-13T12:54:12.00 10.0 undecidable manual PG 4 0.5883 -0.23 1.7
--.MNS.Z. 1997-10-13T12:54:11.00 10.0 undecidable manual PG 195 0.5439 -0.21 1.8
--.ASS.Z. 1997-10-13T12:54:08.00 10.0 undecidable manual SG 312 0.222 -0.6 0.6
--.ASS.Z. 1997-10-13T12:54:05.00 10.0 undecidable manual PG 312 0.222 0.23 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