Earthquake with magnitude of Md 2.0 on date 13-09-2004 and time 22:34:05 (Italy) in region 3 km E Firenzuola (FI)

A magnitude Md 2.0 earthquake occured in region: 3 km E Firenzuola (FI), on

  • 13-09-2004 20:34:05 (UTC)
  • 13-09-2004 22:34:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1130, 11.4200 at 9 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
Firenzuola FI 3 4726 4726
Palazzuolo sul Senio FI 10 1154 5880
Castel del Rio BO 13 1246 7126
Monghidoro BO 15 3749 10875
Marradi FI 16 3139 14014
Borgo San Lorenzo FI 18 18211 32225
Scarperia e San Piero FI 18 12217 44442
San Benedetto Val di Sambro BO 19 4315 48757
Barberino di Mugello FI 19 10836 59593
Loiano BO 19 4294 63887
Fontanelice BO 20 1943 65830

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SW of Imola (69797 inhabitants)
36 Km NE of Prato (191150 inhabitants)
40 Km NE of Firenze (382808 inhabitants)
42 Km W of Faenza (58541 inhabitants)
43 Km S of Bologna (386663 inhabitants)
44 Km NE of Scandicci (50609 inhabitants)
45 Km E of Pistoia (90315 inhabitants)
51 Km W of Forlì (117913 inhabitants)
66 Km W of Cesena (96758 inhabitants)
71 Km W of Ravenna (159116 inhabitants)
71 Km SE of Modena (184973 inhabitants)
79 Km E of Lucca (89046 inhabitants)
81 Km NW of Arezzo (99543 inhabitants)
82 Km S of Ferrara (133155 inhabitants)
86 Km SE of Carpi (70699 inhabitants)
89 Km N of Siena (53903 inhabitants)
90 Km SE of Reggio nell'Emilia (171345 inhabitants)
92 Km W of Rimini (147750 inhabitants)
93 Km E of Pisa (89158 inhabitants)
97 Km E of Viareggio (62467 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 2.0 2004-09-13
20:34:05
44.113 11.42 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 505039
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2004-09-13 20:34:05 ± 0.61
Latitude 44.1130 ± 0.0458
Longitude 11.4200 ± 0.0264
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 505039

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) 5512.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 218
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00065
Epicentral distance of station farthest from the epicenter (degree) 0.00575
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:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 505039
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 01:03:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CSNT.Z. 2004-09-13T20:34:27.79 10.0 undecidable manual SG 188 0.6327 -0.26 0.1
--.BDI.Z. 2004-09-13T20:34:26.10 10.0 undecidable manual SG 265 0.5883 -0.2 0.3
--.CSNT.Z. 2004-09-13T20:34:20.17 10.0 undecidable manual PG 188 0.6327 1.81 0.1
--.SFI.Z. 2004-09-13T20:34:19.39 10.0 undecidable manual SG 124 0.3663 0.19 0.6
--.BDI.Z. 2004-09-13T20:34:17.50 10.0 undecidable manual PG 265 0.5883 -0.3 0.9
--.SFI.Z. 2004-09-13T20:34:13.47 10.0 undecidable manual PG 124 0.3663 0.21 1.5
--.VMG.Z. 2004-09-13T20:34:12.15 10.0 undecidable manual SG 149 0.1665 -0.41 0.4
--.VMG.Z. 2004-09-13T20:34:09.17 10.0 negative manual PG 149 0.1665 -0.24 2.6
--.SEI.Z. 2004-09-13T20:34:09.49 10.0 undecidable manual SG 216 0.0666 0.2 0.6
--.SEI.Z. 2004-09-13T20:34:07.63 10.0 negative manual PG 216 0.0666 0.1 2.9
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