Earthquake with magnitude of Md 2.2 on date 27-03-2004 and time 04:45:37 (Italy) in region 4 km NW Castel del Rio (BO)

A magnitude Md 2.2 earthquake occured in region: 4 km NW Castel del Rio (BO), on

  • 27-03-2004 03:45:37 (UTC)
  • 27-03-2004 04:45:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2450, 11.4880 at 20 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
Castel del Rio BO 4 1246 1246
Fontanelice BO 6 1943 3189
Borgo Tossignano BO 9 3288 6477
Monterenzio BO 11 6035 12512
Casola Valsenio RA 11 2617 15129
Casalfiumanese BO 12 3438 18567
Loiano BO 14 4294 22861
Monghidoro BO 14 3749 26610
Palazzuolo sul Senio FI 15 1154 27764
Firenzuola FI 17 4726 32490
Dozza BO 17 6652 39142
Monzuno BO 18 6328 45470
Castel San Pietro Terme BO 19 20811 66281
Riolo Terme RA 19 5720 72001
Pianoro BO 19 17460 89461

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km SW of Imola (69797 inhabitants)
30 Km SE of Bologna (386663 inhabitants)
32 Km W of Faenza (58541 inhabitants)
44 Km W of Forlì (117913 inhabitants)
51 Km NE of Prato (191150 inhabitants)
56 Km NE of Firenze (382808 inhabitants)
57 Km NE of Pistoia (90315 inhabitants)
59 Km NE of Scandicci (50609 inhabitants)
60 Km W of Ravenna (159116 inhabitants)
61 Km W of Cesena (96758 inhabitants)
63 Km SE of Modena (184973 inhabitants)
67 Km S of Ferrara (133155 inhabitants)
77 Km SE of Carpi (70699 inhabitants)
85 Km SE of Reggio nell'Emilia (171345 inhabitants)
88 Km W of Rimini (147750 inhabitants)
90 Km E of Lucca (89046 inhabitants)
92 Km NW of Arezzo (99543 inhabitants)
95 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 2.2
ML-VAX 1.5
2004-03-27
03:45:37
44.245 11.488 20 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 495469
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2004-03-27 03:45:37 ± 0.456
Latitude 44.2450 ± 0.0350
Longitude 11.4880 ± 0.0202
Depth (km) 20 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 495469

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) 4205.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 248
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00186
Epicentral distance of station farthest from the epicenter (degree) 0.00777
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 495469
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:53:11

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 495469
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
--.PII.Z. 2004-03-27T03:45:54.39 10.0 undecidable manual PN 233 0.8658 -0.18 1
--.BDI.Z. 2004-03-27T03:45:51.81 10.0 undecidable manual PG 254 0.6549 0.52 0.5
--.VMG.Z. 2004-03-27T03:45:49.88 10.0 undecidable manual SG 171 0.2775 0.32 0.5
--.SFI.Z. 2004-03-27T03:45:47.11 10.0 undecidable manual PG 142 0.4218 0.11 1.6
--.SEI.Z. 2004-03-27T03:45:47.83 10.0 undecidable manual SG 205 0.2109 0.32 0.5
--.PGD.Z. 2004-03-27T03:45:46.90 10.0 undecidable manual PG 155 0.3996 0.29 1.3
--.VMG.Z. 2004-03-27T03:45:44.37 10.0 undecidable manual PG 171 0.2775 -0.18 1.5
--.SEI.Z. 2004-03-27T03:45:42.83 10.0 positive manual PG 205 0.2109 -0.54 1.2
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