Earthquake with magnitude of Md 2.2 on date 08-11-1997 and time 10:11:59 (Italy) in region 9 km SE Valtopina (PG)

A magnitude Md 2.2 earthquake occured in region: 9 km SE Valtopina (PG), on

  • 08-11-1997 09:11:59 (UTC)
  • 08-11-1997 10:11:59 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0000, 12.8330 at 10 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
Valtopina PG 9 1398 1398
Foligno PG 12 57155 58553
Serravalle di Chienti MC 13 1070 59623
Nocera Umbra PG 13 5839 65462
Spello PG 13 8645 74107
Monte Cavallo MC 14 145 74252
Sellano PG 15 1079 75331
Trevi PG 15 8469 83800
Pieve Torina MC 18 1458 85258
Montefalco PG 19 5679 90937
Sefro MC 19 422 91359
Assisi PG 19 28299 119658
Bevagna PG 20 5081 124739
Muccia MC 20 915 125654

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km E of Foligno (57155 inhabitants)
38 Km E of Perugia (166134 inhabitants)
51 Km NE of Terni (111501 inhabitants)
81 Km W of Teramo (54892 inhabitants)
86 Km NW of L'Aquila (69753 inhabitants)
88 Km NE of Viterbo (67173 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
93 Km SE of Arezzo (99543 inhabitants)
95 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 1997-11-08
09:11:59
43 12.833 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 310699
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-11-08 09:11:59 ± 0.088
Latitude 43.0000 ± 0.0052
Longitude 12.8330 ± 0.0091
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 310699

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) 944.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 111
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00130
Epicentral distance of station farthest from the epicenter (degree) 0.00623
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 310699
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:51:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FB9.Z. 1997-11-08T09:12:24.40 10.0 undecidable manual SG 356 0.6882 0.34 0.2
--.MNS.Z. 1997-11-08T09:12:22.50 10.0 undecidable manual SG 190 0.6216 0.18 0.4
--.ARV.Z. 1997-11-08T09:12:18.32 10.0 undecidable manual SG 9 0.4995 0.29 0.3
--.FB9.Z. 1997-11-08T09:12:14.70 10.0 undecidable manual PG 356 0.6882 0.23 0.9
--.MNS.Z. 1997-11-08T09:12:12.62 10.0 undecidable manual PG 190 0.6216 0.04 1.4
--.NRCA.Z. 1997-11-08T09:12:10.87 10.0 undecidable manual SG 128 0.2553 0.58 0
--.SNTG.Z. 1997-11-08T09:12:10.70 10.0 undecidable manual SG 16 0.2553 -0.3 0.4
--.ARV.Z. 1997-11-08T09:12:09.95 10.0 undecidable manual PG 9 0.4995 -0.41 0.4
--.ASS.Z. 1997-11-08T09:12:06.28 10.0 undecidable manual SG 295 0.1443 -0.21 0.5
--.NRCA.Z. 1997-11-08T09:12:05.65 10.0 negative manual PG 128 0.2553 -0.25 2.2
--.SNTG.Z. 1997-11-08T09:12:05.82 10.0 undecidable manual PG 16 0.2553 -0.12 1.6
--.ASS.Z. 1997-11-08T09:12:03.68 10.0 positive manual PG 295 0.1443 -0.02 3.6
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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