Earthquake with magnitude of Md 2.1 on date 02-02-1997 and time 17:18:39 (UTC) in region 6 km SW Bagno di Romagna (FC)

A magnitude Md 2.1 earthquake occured in region: 6 km SW Bagno di Romagna (FC), on

  • 02-02-1997 17:18:39 (UTC)
  • 02-02-1997 18:18:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.8150, 11.9340 at 9 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
Bagno di Romagna FC 6 6026 6026
Verghereto FC 6 1907 7933
Chiusi della Verna AR 13 2023 9956
Santa Sofia FC 15 4136 14092
Bibbiena AR 16 12241 26333
Poppi AR 17 6160 32493
Pratovecchio Stia AR 17 5845 38338
Chitignano AR 18 899 39237
Casteldelci RN 18 407 39644
Pieve Santo Stefano AR 18 3183 42827
Caprese Michelangelo AR 19 1426 44253
Castel Focognano AR 20 3149 47402

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km N of Arezzo (99543 inhabitants)
44 Km SW of Cesena (96758 inhabitants)
46 Km S of Forlì (117913 inhabitants)
53 Km S of Faenza (58541 inhabitants)
55 Km E of Firenze (382808 inhabitants)
58 Km W of Rimini (147750 inhabitants)
61 Km E of Scandicci (50609 inhabitants)
62 Km S of Imola (69797 inhabitants)
67 Km E of Prato (191150 inhabitants)
70 Km SW of Ravenna (159116 inhabitants)
73 Km NE of Siena (53903 inhabitants)
79 Km W of Pesaro (94582 inhabitants)
83 Km E of Pistoia (90315 inhabitants)
87 Km NW of Perugia (166134 inhabitants)
87 Km W of Fano (60888 inhabitants)
89 Km SE of Bologna (386663 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 1997-02-02
17:18:39
43.815 11.934 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 260339
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-02-02 17:18:39 ± 0.187
Latitude 43.8150 ± 0.0094
Longitude 11.9340 ± 0.0221
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 260339

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) 2062.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00097
Epicentral distance of station farthest from the epicenter (degree) 0.00518
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 260339
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:06:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CSNT.Z. 1997-02-02T17:18:58.72 10.0 undecidable manual SG 233 0.5772 -0.93 0
--.CSNT.Z. 1997-02-02T17:18:51.48 10.0 negative manual PG 233 0.5772 0.52 0.9
--.RSM.Z. 1997-02-02T17:18:47.64 10.0 undecidable manual PG 72 0.3885 0.15 1.3
--.CRE.Z. 1997-02-02T17:18:47.33 10.0 undecidable manual SG 176 0.1887 0.04 0.6
--.SFI.Z. 1997-02-02T17:18:44.32 10.0 undecidable manual SG 325 0.111 -0.09 0.6
--.CRE.Z. 1997-02-02T17:18:43.54 10.0 positive manual PG 176 0.1887 -0.29 2.4
--.SFI.Z. 1997-02-02T17:18:41.86 10.0 undecidable manual PG 325 0.111 -0.3 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