Earthquake with magnitude of Md 2.1 on date 09-10-1997 and time 04:17:52 (Italy) in region 3 km S Badia Tedalda (AR)

A magnitude Md 2.1 earthquake occured in region: 3 km S Badia Tedalda (AR), on

  • 09-10-1997 02:17:52 (UTC)
  • 09-10-1997 04:17:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6810, 12.1800 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
Badia Tedalda AR 3 1087 1087
Borgo Pace PU 10 606 1693
Sestino AR 10 1355 3048
Pieve Santo Stefano AR 11 3183 6231
Casteldelci RN 13 407 6638
Sansepolcro AR 13 15884 22522
Mercatello sul Metauro PU 13 1378 23900
San Giustino PG 15 11297 35197
Caprese Michelangelo AR 16 1426 36623
Belforte all'Isauro PU 16 769 37392
Pennabilli RN 17 2869 40261
Carpegna PU 17 1674 41935
Anghiari AR 18 5638 47573
Frontino PU 19 293 47866
Sant'Angelo in Vado PU 19 4133 51999
Verghereto FC 19 1907 53906
Piandimeleto PU 20 2167 56073
Chiusi della Verna AR 20 2023 58096

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NE of Arezzo (99543 inhabitants)
51 Km S of Cesena (96758 inhabitants)
53 Km SW of Rimini (147750 inhabitants)
61 Km S of Forlì (117913 inhabitants)
64 Km W of Pesaro (94582 inhabitants)
66 Km N of Perugia (166134 inhabitants)
70 Km W of Fano (60888 inhabitants)
71 Km SE of Faenza (58541 inhabitants)
75 Km E of Firenze (382808 inhabitants)
79 Km NE of Siena (53903 inhabitants)
81 Km E of Scandicci (50609 inhabitants)
82 Km S of Ravenna (159116 inhabitants)
84 Km SE of Imola (69797 inhabitants)
90 Km E of Prato (191150 inhabitants)
91 Km NW of Foligno (57155 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 2.1
ML-VAX 1.7
1997-10-09
02:17:52
43.681 12.18 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 294039
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-10-09 02:17:52 ± 0.12
Latitude 43.6810 ± 0.0133
Longitude 12.1800 ± 0.0072
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 294039

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) 1594.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 161
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.00607
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 294039
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:36:41

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 294039
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
--.CSNT.Z. 1997-10-09T02:18:17.50 10.0 undecidable manual SG 252 0.6771 -0.52 0.1
--.FB9.Z. 1997-10-09T02:18:09.99 10.0 undecidable manual SG 88 0.4329 0.29 0.5
--.CSNT.Z. 1997-10-09T02:18:07.26 10.0 undecidable manual PG 252 0.6771 0.08 1.6
--.SFI.Z. 1997-10-09T02:18:06.26 10.0 undecidable manual SG 312 0.3219 0.53 0.2
--.FB9.Z. 1997-10-09T02:18:02.50 10.0 undecidable manual PG 88 0.4329 -0.14 2
--.CRE.Z. 1997-10-09T02:18:00.60 10.0 undecidable manual SG 249 0.1665 0.05 0.9
--.SFI.Z. 1997-10-09T02:17:59.99 10.0 undecidable manual PG 312 0.3219 -0.35 1.1
--.CRE.Z. 1997-10-09T02:17:57.28 10.0 undecidable manual PG 249 0.1665 0.24 1.6
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