Earthquake with magnitude of Md 2.0 on date 07-10-1997 and time 05:29:36 (UTC) in region 8 km SW Gualdo Tadino (PG)

A magnitude Md 2.0 earthquake occured in region: 8 km SW Gualdo Tadino (PG), on

  • 07-10-1997 05:29:36 (UTC)
  • 07-10-1997 07:29:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1950, 12.7040 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
Gualdo Tadino PG 8 15208 15208
Valfabbrica PG 9 3389 18597
Nocera Umbra PG 12 5839 24436
Fossato di Vico PG 12 2840 27276
Assisi PG 15 28299 55575
Sigillo PG 16 2404 57979
Valtopina PG 16 1398 59377
Costacciaro PG 18 1216 60593
Fiuminata MC 19 1402 61995
Bastia Umbra PG 19 21874 83869

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km N of Foligno (57155 inhabitants)
27 Km E of Perugia (166134 inhabitants)
71 Km N of Terni (111501 inhabitants)
73 Km E of Arezzo (99543 inhabitants)
77 Km SW of Fano (60888 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
81 Km S of Pesaro (94582 inhabitants)
97 Km S of Rimini (147750 inhabitants)
99 Km NE of Viterbo (67173 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 2.0 1997-10-07
05:29:36
43.195 12.704 3 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 291989
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-07 05:29:36 ± 0.12
Latitude 43.1950 ± 0.0109
Longitude 12.7040 ± 0.0407
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 291989

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) 3517.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 170
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.00121
Epicentral distance of station farthest from the epicenter (degree) 0.00729
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:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 291989
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:34:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FB9.Z. 1997-10-07T05:29:56.28 10.0 undecidable manual SG 6 0.4995 0.42 0.1
--.MNS.Z. 1997-10-07T05:29:53.50 10.0 undecidable manual PG 181 0.8103 0.02 1.2
--.ARV.Z. 1997-10-07T05:29:50.43 10.0 undecidable manual SG 29 0.3441 0.31 0.2
--.FB9.Z. 1997-10-07T05:29:47.47 10.0 undecidable manual PG 6 0.4995 -0.25 0.7
--.ARV.Z. 1997-10-07T05:29:44.22 10.0 undecidable manual PG 29 0.3441 -0.19 1.2
--.ASS.Z. 1997-10-07T05:29:41.83 10.0 undecidable manual SG 195 0.1332 -0.21 0.4
--.ASS.Z. 1997-10-07T05:29:39.83 10.0 positive manual PG 195 0.1332 0.09 3.2
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