Earthquake with magnitude of Md 2.5 on date 07-10-1997 and time 02:29:47 (Italy) in region 10 km E Foligno (PG)

A magnitude Md 2.5 earthquake occured in region: 10 km E Foligno (PG), on

  • 07-10-1997 00:29:47 (UTC)
  • 07-10-1997 02:29:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.973, 12.827 at 3 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
Foligno PG 10 57155 57155
Valtopina PG 11 1398 58553
Trevi PG 12 8469 67022
Sellano PG 12 1079 68101
Spello PG 13 8645 76746
Monte Cavallo MC 14 145 76891
Serravalle di Chienti MC 15 1070 77961
Nocera Umbra PG 16 5839 83800
Montefalco PG 17 5679 89479
Campello sul Clitunno PG 17 2442 91921
Bevagna PG 18 5081 97002
Cerreto di Spoleto PG 19 1075 98077
Cannara PG 20 4305 102382
Pieve Torina MC 20 1458 103840

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km E of Foligno (57155 inhabitants)
39 Km E of Perugia (166134 inhabitants)
48 Km NE of Terni (111501 inhabitants)
80 Km W of Teramo (54892 inhabitants)
83 Km NW of L'Aquila (69753 inhabitants)
85 Km NE of Viterbo (67173 inhabitants)
91 Km SW of Ancona (100861 inhabitants)
94 Km SE of Arezzo (99543 inhabitants)
98 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 2.5 1997-10-07
00:29:47
42.973 12.827 3 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 291399
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-07 00:29:47 ± 0.14
Latitude 42.9730 ± 0.0048
Longitude 12.8270 ± 0.0113
Depth (km) 3 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 291399

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) 1064.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 148
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.01101
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 291399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:34:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.RDP.Z. 1997-10-07T00:30:11.91 10.0 undecidable manual PN 183 0.0109 0.31 0.3
--.CSNT.Z. 1997-10-07T00:30:11.70 10.0 undecidable manual PN 294 0.011 -0.01 1.1
--.MNS.Z. 1997-10-07T00:30:10.19 10.0 undecidable manual SG 190 0.0053 0.01 0.6
--.PQ9.Z. 1997-10-07T00:30:09.23 10.0 undecidable manual PG 155 0.0093 0.31 0.3
--.AQU.Z. 1997-10-07T00:30:03.33 10.0 undecidable manual PG 145 0.0067 -0.2 0.8
--.FB9.Z. 1997-10-07T00:30:02.87 10.0 undecidable manual PG 357 0.0065 -0.1 1.2
--.MNS.Z. 1997-10-07T00:30:00.51 10.0 negative manual PG 190 0.0053 -0.21 1.5
--.ASS.Z. 1997-10-07T00:29:53.87 10.0 undecidable manual SG 304 0.0014 -0.02 0.6
--.ASS.Z. 1997-10-07T00:29:51.36 10.0 negative manual PG 304 0.0014 0.05 2.7
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