Earthquake with magnitude of Md 2.3 on date 02-12-2001 and time 23:46:31 (UTC) in region 4 km NE Castrocaro Terme e Terra del Sole (FC)

A magnitude Md 2.3 earthquake occured in region: 4 km NE Castrocaro Terme e Terra del Sole (FC), on

  • 02-12-2001 23:46:31 (UTC)
  • 03-12-2001 00:46:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2030, 11.9890 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
Castrocaro Terme e Terra del Sole FC 4 6426 6426
Forlì FC 5 117913 124339
Meldola FC 10 9970 134309
Forlimpopoli FC 11 13290 147599
Predappio FC 11 6346 153945
Dovadola FC 12 1653 155598
Faenza RA 13 58541 214139
Bertinoro FC 13 11059 225198
Modigliana FC 16 4560 229758
Brisighella RA 18 7639 237397
Russi RA 19 12247 249644
Rocca San Casciano FC 20 1910 251554
Castel Bolognese RA 20 9554 261108

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km W of Forlì (117913 inhabitants)
13 Km SE of Faenza (58541 inhabitants)
22 Km W of Cesena (96758 inhabitants)
28 Km SE of Imola (69797 inhabitants)
29 Km SW of Ravenna (159116 inhabitants)
49 Km W of Rimini (147750 inhabitants)
61 Km SE of Bologna (386663 inhabitants)
76 Km NE of Firenze (382808 inhabitants)
76 Km SE of Ferrara (133155 inhabitants)
80 Km E of Prato (191150 inhabitants)
81 Km W of Pesaro (94582 inhabitants)
81 Km NE of Scandicci (50609 inhabitants)
82 Km N of Arezzo (99543 inhabitants)
91 Km E of Pistoia (90315 inhabitants)
92 Km W of Fano (60888 inhabitants)
98 Km SE of Modena (184973 inhabitants)
98 Km S of Rovigo (51867 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 2001-12-02
23:46:31
44.203 11.989 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 432429
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2001-12-02 23:46:31 ± 0.61
Latitude 44.2030 ± 0.0234
Longitude 11.9890 ± 0.0450
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 432429

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) 4427.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 260
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) 0.00283
Epicentral distance of station farthest from the epicenter (degree) 0.00907
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 432429
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:48:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BDI.Z. 2001-12-02T23:46:51.33 10.0 undecidable manual PG 262 1.0101 -0.13 0.8
--.CSNT.Z. 2001-12-02T23:46:49.46 10.0 undecidable manual PG 214 0.8769 0.26 0.7
--.ZCCA.Z. 2001-12-02T23:46:46.65 10.0 undecidable manual PG 281 0.7326 0.19 0.9
--.PGD.Z. 2001-12-02T23:46:45.22 10.0 undecidable manual SG 210 0.3774 -0.62 0.1
--.SFI.Z. 2001-12-02T23:46:44.15 10.0 undecidable manual SG 198 0.3108 0.77 0
--.CRE.Z. 2001-12-02T23:46:43.41 10.0 negative manual PG 182 0.5772 -0.18 2.1
--.PGD.Z. 2001-12-02T23:46:39.36 10.0 negative manual PG 210 0.3774 -0.26 1.7
--.SFI.Z. 2001-12-02T23:46:38.45 10.0 negative manual PG 198 0.3108 0.26 1.7
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