Earthquake with magnitude of Md 2.2 on date 07-10-1997 and time 12:05:24 (Italy) in region 5 km NE Foligno (PG)

A magnitude Md 2.2 earthquake occured in region: 5 km NE Foligno (PG), on

  • 07-10-1997 10:05:24 (UTC)
  • 07-10-1997 12:05:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9850, 12.7510 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
Foligno PG 5 57155 57155
Spello PG 7 8645 65800
Valtopina PG 8 1398 67198
Trevi PG 12 8469 75667
Bevagna PG 13 5081 80748
Montefalco PG 13 5679 86427
Cannara PG 14 4305 90732
Nocera Umbra PG 15 5839 96571
Assisi PG 15 28299 124870
Gualdo Cattaneo PG 18 6155 131025
Sellano PG 18 1079 132104
Campello sul Clitunno PG 18 2442 134546
Bastia Umbra PG 19 21874 156420
Castel Ritaldi PG 19 3278 159698
Serravalle di Chienti MC 19 1070 160768

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km NE of Foligno (57155 inhabitants)
32 Km E of Perugia (166134 inhabitants)
48 Km N of Terni (111501 inhabitants)
82 Km NE of Viterbo (67173 inhabitants)
86 Km W of Teramo (54892 inhabitants)
88 Km NW of L'Aquila (69753 inhabitants)
88 Km SE of Arezzo (99543 inhabitants)
94 Km SW of Ancona (100861 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 2.2
ML-VAX 1.7
1997-10-07
10:05:24
42.985 12.751 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 292299
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-07 10:05:24 ± 0.29
Latitude 42.9850 ± 0.0125
Longitude 12.7510 ± 0.0415
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 292299

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) 3652.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 169
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) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00089
Epicentral distance of station farthest from the epicenter (degree) 0.00631
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 292299
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:35:09

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 292299
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. 1997-10-07T10:05:51.20 10.0 undecidable manual SG 1 0.6993 0.91 0.4
--.MNS.Z. 1997-10-07T10:05:46.38 10.0 undecidable manual SG 184 0.5883 -0.57 0.7
--.ARV.Z. 1997-10-07T10:05:44.91 10.0 undecidable manual SG 15 0.5328 0.23 0.9
--.FB9.Z. 1997-10-07T10:05:39.78 10.0 undecidable manual PG 1 0.6993 0.29 1.8
--.MNS.Z. 1997-10-07T10:05:38.13 10.0 undecidable manual PG 184 0.5883 0.57 1.6
--.ARV.Z. 1997-10-07T10:05:35.25 10.0 undecidable manual PG 15 0.5328 -1 1
--.ASS.Z. 1997-10-07T10:05:30.00 10.0 undecidable manual SG 316 0.0999 0.85 0.5
--.ASS.Z. 1997-10-07T10:05:26.32 10.0 undecidable manual PG 316 0.0999 -0.96 1.1
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