Earthquake with magnitude of Md 2.0 on date 27-01-2003 and time 00:03:40 (UTC) in region 4 km SE Santa Sofia (FC)

A magnitude Md 2.0 earthquake occured in region: 4 km SE Santa Sofia (FC), on

  • 27-01-2003 00:03:40 (UTC)
  • 27-01-2003 01:03:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.9150, 11.9400 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 4 4136 4136
Bagno di Romagna FC 7 6026 10162
Galeata FC 9 2516 12678
Civitella di Romagna FC 10 3786 16464
Verghereto FC 14 1907 18371
Premilcuore FC 15 799 19170
Sarsina FC 16 3446 22616
Portico e San Benedetto FC 18 756 23372
Rocca San Casciano FC 18 1910 25282

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km SW of Cesena (96758 inhabitants)
35 Km S of Forlì (117913 inhabitants)
42 Km S of Faenza (58541 inhabitants)
50 Km N of Arezzo (99543 inhabitants)
52 Km SE of Imola (69797 inhabitants)
53 Km W of Rimini (147750 inhabitants)
57 Km E of Firenze (382808 inhabitants)
60 Km SW of Ravenna (159116 inhabitants)
63 Km E of Scandicci (50609 inhabitants)
68 Km E of Prato (191150 inhabitants)
78 Km W of Pesaro (94582 inhabitants)
80 Km SE of Bologna (386663 inhabitants)
82 Km E of Pistoia (90315 inhabitants)
82 Km NE of Siena (53903 inhabitants)
87 Km W of Fano (60888 inhabitants)
97 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
ML-VAX 1.7
2003-01-27
00:03:40
43.915 11.94 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 467079
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2003-01-27 00:03:40 ± 0.248
Latitude 43.9150 ± 0.0117
Longitude 11.9400 ± 0.0212
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 467079

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) 2135.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 249
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00057
Epicentral distance of station farthest from the epicenter (degree) 0.00397
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:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 467079
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:22:48

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 467079
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
--.SEI.Z. 2003-01-27T00:03:57.17 10.0 undecidable manual SG 288 0.444 0.24 0.1
--.CRE.Z. 2003-01-27T00:03:52.38 10.0 undecidable manual SG 178 0.2886 0.11 0.5
--.VMG.Z. 2003-01-27T00:03:51.76 10.0 undecidable manual SG 279 0.2886 -0.3 0.1
--.SEI.Z. 2003-01-27T00:03:49.97 10.0 undecidable manual PG 288 0.444 -0.14 0.8
--.VMG.Z. 2003-01-27T00:03:47.48 10.0 undecidable manual PG 279 0.2886 0.18 0.7
--.CRE.Z. 2003-01-27T00:03:47.34 10.0 undecidable manual PG 178 0.2886 -0.08 1.5
--.SFI.Z. 2003-01-27T00:03:44.98 10.0 undecidable manual SG 260 0.0666 -0.03 0.7
--.SFI.Z. 2003-01-27T00:03:43.24 10.0 positive manual PG 260 0.0666 0.01 3.6
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