Earthquake with magnitude of Md 2.0 on date 25-12-1994 and time 23:47:10 (Italy) in region 2 km S Santa Sofia (FC)

A magnitude Md 2.0 earthquake occured in region: 2 km S Santa Sofia (FC), on

  • 25-12-1994 22:47:10 (UTC)
  • 25-12-1994 23:47:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.9330, 11.9030 at 10 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
Santa Sofia FC 2 4136 4136
Galeata FC 7 2516 6652
Civitella di Romagna FC 9 3786 10438
Bagno di Romagna FC 10 6026 16464
Premilcuore FC 11 799 17263
Portico e San Benedetto FC 14 756 18019
Rocca San Casciano FC 15 1910 19929
Verghereto FC 17 1907 21836
Sarsina FC 19 3446 25282
Predappio FC 20 6346 31628

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km SW of Forlì (117913 inhabitants)
35 Km SW of Cesena (96758 inhabitants)
39 Km S of Faenza (58541 inhabitants)
49 Km SE of Imola (69797 inhabitants)
52 Km N of Arezzo (99543 inhabitants)
55 Km E of Firenze (382808 inhabitants)
55 Km W of Rimini (147750 inhabitants)
59 Km SW of Ravenna (159116 inhabitants)
61 Km E of Scandicci (50609 inhabitants)
65 Km E of Prato (191150 inhabitants)
77 Km SE of Bologna (386663 inhabitants)
79 Km E of Pistoia (90315 inhabitants)
81 Km W of Pesaro (94582 inhabitants)
82 Km NE of Siena (53903 inhabitants)
90 Km W of Fano (60888 inhabitants)
100 Km NW of Perugia (166134 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 1994-12-25
22:47:10
43.933 11.903 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 221589
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1994-12-25 22:47:10 ± 0.438
Latitude 43.9330 ± 0.0188
Longitude 11.9030 ± 0.0436
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 221589

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) 4072.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 215
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.00040
Epicentral distance of station farthest from the epicenter (degree) 0.00915
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 221589
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:29:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.PII.Z. 1994-12-25T22:47:32.15 10.0 undecidable manual PG 258 1.0101 1.57 0
--.SE4.Z. 1994-12-25T22:47:26.26 10.0 undecidable manual SG 287 0.3996 0.51 0.3
--.CRE.Z. 1994-12-25T22:47:23.12 10.0 undecidable manual SG 173 0.3108 0.46 0.4
--.SE4.Z. 1994-12-25T22:47:19.52 10.0 positive manual PG 287 0.3996 0.16 2.2
--.LM4.Z. 1994-12-25T22:47:18.51 10.0 undecidable manual SG 318 0.1887 -0.23 0.5
--.CRE.Z. 1994-12-25T22:47:17.21 10.0 undecidable manual PG 173 0.3108 -0.36 1.1
--.PGD.Z. 1994-12-25T22:47:16.32 10.0 undecidable manual SG 246 0.1332 -0.81 0.2
--.LM4.Z. 1994-12-25T22:47:14.94 10.0 negative manual PG 318 0.1887 -0.37 2.2
--.SFI.Z. 1994-12-25T22:47:14.17 10.0 undecidable manual SG 234 0.0444 -0.41 0.4
--.PGD.Z. 1994-12-25T22:47:13.99 10.0 undecidable manual PG 246 0.1332 -0.39 1.1
--.SFI.Z. 1994-12-25T22:47:12.76 10.0 negative manual PG 234 0.0444 -0.15 2.6
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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