Earthquake with magnitude of Md 2.2 on date 01-10-1997 and time 10:35:11 (Italy) in region 10 km NW Sellano (PG)

A magnitude Md 2.2 earthquake occured in region: 10 km NW Sellano (PG), on

  • 01-10-1997 08:35:11 (UTC)
  • 01-10-1997 10:35:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9600, 12.8560 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 10 1079 1079
Foligno PG 12 57155 58234
Monte Cavallo MC 13 145 58379
Trevi PG 13 8469 66848
Valtopina PG 14 1398 68246
Serravalle di Chienti MC 15 1070 69316
Spello PG 15 8645 77961
Cerreto di Spoleto PG 16 1075 79036
Campello sul Clitunno PG 17 2442 81478
Preci PG 17 724 82202
Nocera Umbra PG 18 5839 88041
Montefalco PG 18 5679 93720
Pieve Torina MC 19 1458 95178
Visso MC 19 1107 96285

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km E of Foligno (57155 inhabitants)
41 Km E of Perugia (166134 inhabitants)
47 Km NE of Terni (111501 inhabitants)
77 Km W of Teramo (54892 inhabitants)
81 Km NW of L'Aquila (69753 inhabitants)
86 Km NE of Viterbo (67173 inhabitants)
91 Km SW of Ancona (100861 inhabitants)
97 Km SE of Arezzo (99543 inhabitants)
99 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 1997-10-01
08:35:11
42.96 12.856 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 286359
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-01 08:35:11 ± 0.178
Latitude 42.9600 ± 0.0068
Longitude 12.8560 ± 0.0217
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 286359

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) 1923.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 185
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00162
Epicentral distance of station farthest from the epicenter (degree) 0.00656
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 286359
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:29:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FB9.Z. 1997-10-01T08:35:38.88 10.0 undecidable manual SG 355 0.7326 0.62 0.2
--.MNS.Z. 1997-10-01T08:35:33.82 10.0 undecidable manual SG 192 0.5883 0.24 0.7
--.ARV.Z. 1997-10-01T08:35:32.00 10.0 undecidable manual SG 6 0.5439 -0.11 0.8
--.FB9.Z. 1997-10-01T08:35:27.35 10.0 undecidable manual PG 355 0.7326 0.27 1.4
--.MNS.Z. 1997-10-01T08:35:24.24 10.0 undecidable manual PG 192 0.5883 -0.14 2
--.ARV.Z. 1997-10-01T08:35:22.98 10.0 undecidable manual PG 6 0.5439 -0.55 0.7
--.ASS.Z. 1997-10-01T08:35:18.43 10.0 undecidable manual SG 304 0.1776 -0.56 0.3
--.ASS.Z. 1997-10-01T08:35:16.18 10.0 undecidable manual PG 304 0.1776 0.22 1.9
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