Earthquake with magnitude of Md 2.5 on date 15-09-2003 and time 07:08:46 (Italy) in region 5 km W Fontanelice (BO)

A magnitude Md 2.5 earthquake occured in region: 5 km W Fontanelice (BO), on

  • 15-09-2003 05:08:46 (UTC)
  • 15-09-2003 07:08:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2740, 11.4980 at 4 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
Fontanelice BO 5 1943 1943
Castel del Rio BO 7 1246 3189
Borgo Tossignano BO 7 3288 6477
Monterenzio BO 9 6035 12512
Casalfiumanese BO 10 3438 15950
Casola Valsenio RA 12 2617 18567
Loiano BO 14 4294 22861
Dozza BO 14 6652 29513
Monghidoro BO 16 3749 33262
Castel San Pietro Terme BO 16 20811 54073
Pianoro BO 18 17460 71533
Monzuno BO 18 6328 77861
Riolo Terme RA 18 5720 83581
Palazzuolo sul Senio FI 18 1154 84735
Ozzano dell'Emilia BO 19 13596 98331
Imola BO 19 69797 168128
Firenzuola FI 20 4726 172854

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km W of Imola (69797 inhabitants)
28 Km SE of Bologna (386663 inhabitants)
31 Km W of Faenza (58541 inhabitants)
44 Km W of Forlì (117913 inhabitants)
54 Km NE of Prato (191150 inhabitants)
58 Km W of Ravenna (159116 inhabitants)
59 Km NE of Firenze (382808 inhabitants)
60 Km NE of Pistoia (90315 inhabitants)
61 Km W of Cesena (96758 inhabitants)
61 Km SE of Modena (184973 inhabitants)
63 Km NE of Scandicci (50609 inhabitants)
63 Km S of Ferrara (133155 inhabitants)
75 Km SE of Carpi (70699 inhabitants)
83 Km SE of Reggio nell'Emilia (171345 inhabitants)
88 Km W of Rimini (147750 inhabitants)
92 Km S of Rovigo (51867 inhabitants)
93 Km NE of Lucca (89046 inhabitants)
95 Km NW of Arezzo (99543 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 2.5
ML-VAX 1.8
2003-09-15
05:08:46
44.274 11.498 4 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 484689
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2003-09-15 05:08:46 ± 0.214
Latitude 44.2740 ± 0.0111
Longitude 11.4980 ± 0.0128
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 484689

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) 1598.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 223
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.00210
Epicentral distance of station farthest from the epicenter (degree) 0.00656
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 7
Type of magnitude Md
Reference to an origin 484689
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:42:07

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 484689
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
--.SFI.Z. 2003-09-15T05:09:04.82 10.0 undecidable manual SG 145 0.444 0.69 0
--.PGD.Z. 2003-09-15T05:09:03.47 10.0 undecidable manual SG 157 0.4218 0.01 0.7
--.CRE.Z. 2003-09-15T05:09:02.15 10.0 undecidable manual PG 153 0.7326 0.04 1.3
--.BDI.Z. 2003-09-15T05:09:01.14 10.0 undecidable manual PG 252 0.6771 -0.02 1.4
--.VMG.Z. 2003-09-15T05:08:58.79 10.0 undecidable manual SG 173 0.3108 -0.24 0.4
--.SEI.Z. 2003-09-15T05:08:56.59 10.0 undecidable manual SG 204 0.2331 0.33 0.2
--.PGD.Z. 2003-09-15T05:08:56.49 10.0 undecidable manual PG 157 0.4218 0.05 1.8
--.SFI.Z. 2003-09-15T05:08:56.63 10.0 undecidable manual PG 145 0.444 -0.2 1.2
--.ZCCA.Z. 2003-09-15T05:08:55.51 10.0 undecidable manual PG 281 0.3774 0.16 1.4
--.VMG.Z. 2003-09-15T05:08:53.67 10.0 undecidable manual PG 173 0.3108 -0.21 1.1
--.SEI.Z. 2003-09-15T05:08:52.12 10.0 undecidable manual PG 204 0.2331 -0.17 1.4
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