Earthquake with magnitude of Md 2.3 on date 02-07-1989 and time 12:13:01 (UTC) in region 7 km SW Bagno di Romagna (FC)

A magnitude Md 2.3 earthquake occured in region: 7 km SW Bagno di Romagna (FC), on

  • 02-07-1989 12:13:01 (UTC)
  • 02-07-1989 14:13:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.8210, 11.9150 at 7 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 7 6026 6026
Verghereto FC 8 1907 7933
Chiusi della Verna AR 14 2023 9956
Santa Sofia FC 14 4136 14092
Bibbiena AR 16 12241 26333
Pratovecchio Stia AR 16 5845 32178
Poppi AR 16 6160 38338
Chitignano AR 18 899 39237
Castel San Niccolò AR 19 2707 41944
Galeata FC 20 2516 44460
Casteldelci RN 20 407 44867
Pieve Santo Stefano AR 20 3183 48050
Castel Focognano AR 20 3149 51199

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)
52 Km S of Faenza (58541 inhabitants)
53 Km E of Firenze (382808 inhabitants)
59 Km W of Rimini (147750 inhabitants)
59 Km E of Scandicci (50609 inhabitants)
61 Km S of Imola (69797 inhabitants)
66 Km E of Prato (191150 inhabitants)
70 Km SW of Ravenna (159116 inhabitants)
73 Km NE of Siena (53903 inhabitants)
81 Km W of Pesaro (94582 inhabitants)
81 Km E of Pistoia (90315 inhabitants)
88 Km SE of Bologna (386663 inhabitants)
88 Km NW of Perugia (166134 inhabitants)
89 Km W 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 2.3 1989-07-02
12:13:01
43.821 11.915 7 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 94369
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-07-02 12:13:01 ± 0.082
Latitude 43.8210 ± 0.0051
Longitude 11.9150 ± 0.0107
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 94369

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) 1031.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00081
Epicentral distance of station farthest from the epicenter (degree) 0.00356
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 94369
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:28:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CRE.Z. 1989-07-02T12:13:10.50 10.0 undecidable manual SG 172 0.1998 0.31 0.1
--.RSM.Z. 1989-07-02T12:13:10.82 10.0 undecidable manual PG 74 0.3996 0.02 1.3
--.PGD.Z. 1989-07-02T12:13:08.11 10.0 undecidable manual SG 291 0.1443 -0.15 0.5
--.CRE.Z. 1989-07-02T12:13:06.50 10.0 undecidable manual PG 172 0.1998 -0.21 0.8
--.SFI.Z. 1989-07-02T12:13:06.50 10.0 undecidable manual SG 329 0.0888 0.05 0.8
--.PGD.Z. 1989-07-02T12:13:05.73 10.0 undecidable manual PG 291 0.1443 0.13 1.5
--.SFI.Z. 1989-07-02T12:13:04.50 10.0 undecidable manual PG 329 0.0888 -0.05 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