Earthquake with magnitude of Md 2.2 on date 02-12-2001 and time 20:32:25 (UTC) in region 5 km W Forlì (FC)

A magnitude Md 2.2 earthquake occured in region: 5 km W Forlì (FC), on

  • 02-12-2001 20:32:25 (UTC)
  • 02-12-2001 21:32:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2240, 11.9780 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
Forlì FC 5 117913 117913
Castrocaro Terme e Terra del Sole FC 6 6426 124339
Faenza RA 10 58541 182880
Meldola FC 13 9970 192850
Forlimpopoli FC 13 13290 206140
Dovadola FC 13 1653 207793
Predappio FC 14 6346 214139
Bertinoro FC 15 11059 225198
Modigliana FC 17 4560 229758
Brisighella RA 17 7639 237397
Russi RA 17 12247 249644
Castel Bolognese RA 18 9554 259198
Cotignola RA 18 7474 266672
Solarolo RA 19 4488 271160

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km W of Forlì (117913 inhabitants)
10 Km SE of Faenza (58541 inhabitants)
23 Km W of Cesena (96758 inhabitants)
25 Km SE of Imola (69797 inhabitants)
28 Km SW of Ravenna (159116 inhabitants)
50 Km W of Rimini (147750 inhabitants)
59 Km SE of Bologna (386663 inhabitants)
74 Km SE of Ferrara (133155 inhabitants)
77 Km NE of Firenze (382808 inhabitants)
80 Km E of Prato (191150 inhabitants)
82 Km NE of Scandicci (50609 inhabitants)
83 Km W of Pesaro (94582 inhabitants)
85 Km N of Arezzo (99543 inhabitants)
91 Km E of Pistoia (90315 inhabitants)
93 Km W of Fano (60888 inhabitants)
95 Km S of Rovigo (51867 inhabitants)
96 Km E of Modena (184973 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 2.2 2001-12-02
20:32:25
44.224 11.978 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 432389
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2001-12-02 20:32:25 ± 0.434
Latitude 44.2240 ± 0.0164
Longitude 11.9780 ± 0.0317
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 432389

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) 3118.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 280
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.00300
Epicentral distance of station farthest from the epicenter (degree) 0.00899
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 432389
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:48:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CSNT.Z. 2001-12-02T20:32:56.55 10.0 undecidable manual SG 213 0.8991 -0.72 0
--.CRE.Z. 2001-12-02T20:32:48.11 10.0 undecidable manual SG 181 0.5994 0.33 0.4
--.BDI.Z. 2001-12-02T20:32:45.99 10.0 undecidable manual PG 261 0.999 0.23 1
--.CSNT.Z. 2001-12-02T20:32:44.50 10.0 undecidable manual PG 213 0.8991 0.2 1.1
--.PGD.Z. 2001-12-02T20:32:41.10 10.0 undecidable manual SG 207 0.3885 0.21 0.6
--.CRE.Z. 2001-12-02T20:32:38.19 10.0 undecidable manual PG 181 0.5994 -0.19 1.5
--.SFI.Z. 2001-12-02T20:32:38.92 10.0 undecidable manual SG 196 0.333 0.46 0.2
--.SFI.Z. 2001-12-02T20:32:33.00 10.0 negative manual PG 196 0.333 0.01 3.6
--.PGD.Z. 2001-12-02T20:32:33.90 10.0 undecidable manual PG 207 0.3885 -0.44 0.6
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