Earthquake with magnitude of Md 2.3 on date 21-08-2000 and time 01:35:27 (Italy) in region 4 km N Castrocaro Terme e Terra del Sole (FC)

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

  • 20-08-2000 23:35:27 (UTC)
  • 21-08-2000 01:35:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2100, 11.9620 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 7 117913 124339
Faenza RA 11 58541 182880
Dovadola FC 11 1653 184533
Predappio FC 12 6346 190879
Meldola FC 12 9970 200849
Forlimpopoli FC 13 13290 214139
Modigliana FC 15 4560 218699
Bertinoro FC 15 11059 229758
Brisighella RA 15 7639 237397
Castel Bolognese RA 18 9554 246951
Russi RA 19 12247 259198
Rocca San Casciano FC 19 1910 261108
Solarolo RA 19 4488 265596
Cotignola RA 20 7474 273070

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km W of Forlì (117913 inhabitants)
11 Km SE of Faenza (58541 inhabitants)
24 Km W of Cesena (96758 inhabitants)
25 Km SE of Imola (69797 inhabitants)
30 Km SW of Ravenna (159116 inhabitants)
51 Km W of Rimini (147750 inhabitants)
59 Km SE of Bologna (386663 inhabitants)
75 Km NE of Firenze (382808 inhabitants)
75 Km SE of Ferrara (133155 inhabitants)
78 Km E of Prato (191150 inhabitants)
80 Km NE of Scandicci (50609 inhabitants)
83 Km N of Arezzo (99543 inhabitants)
83 Km W of Pesaro (94582 inhabitants)
89 Km E of Pistoia (90315 inhabitants)
94 Km W of Fano (60888 inhabitants)
96 Km SE of Modena (184973 inhabitants)
97 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
ML-VAX 1.9
2000-08-20
23:35:27
44.21 11.962 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 401229
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2000-08-20 23:35:27 ± 0.407
Latitude 44.2100 ± 0.0204
Longitude 11.9620 ± 0.0169
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 401229

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) 2642.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 277
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.01069
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 401229
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:17:24

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 401229
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
--.SNTG.Z. 2000-08-20T23:36:08.00 10.0 undecidable manual SN 143 1.1877 0.7 0.1
--.ARV.Z. 2000-08-20T23:36:02.10 10.0 undecidable manual SG 134 0.999 -0.27 0.5
--.CSNT.Z. 2000-08-20T23:35:59.60 10.0 undecidable manual SG 213 0.8769 0.66 0.1
--.FB9.Z. 2000-08-20T23:35:55.65 10.0 undecidable manual SG 131 0.777 0.45 0.3
--.SNTG.Z. 2000-08-20T23:35:50.41 10.0 undecidable manual PN 143 1.1877 0.05 1.5
--.ARV.Z. 2000-08-20T23:35:46.80 10.0 undecidable manual PG 134 0.999 -0.66 0.3
--.CSNT.Z. 2000-08-20T23:35:45.47 10.0 undecidable manual PG 213 0.8769 0.25 1.4
--.FB9.Z. 2000-08-20T23:35:43.58 10.0 undecidable manual PG 131 0.777 0.21 1.6
--.PGD.Z. 2000-08-20T23:35:41.36 10.0 undecidable manual SG 207 0.3663 -0.47 0.3
--.SFI.Z. 2000-08-20T23:35:39.51 10.0 undecidable manual SG 195 0.3108 -0.02 0.8
--.PGD.Z. 2000-08-20T23:35:35.37 10.0 undecidable manual PG 207 0.3663 -0.28 1.4
--.SFI.Z. 2000-08-20T23:35:34.31 10.0 negative manual PG 195 0.3108 -0.02 3.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download