Earthquake with magnitude of Md 2.0 on date 09-06-2004 and time 03:42:33 (Italy) in region 3 km SE Marradi (FI)

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

  • 09-06-2004 01:42:33 (UTC)
  • 09-06-2004 03:42:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.05, 11.63 at 2 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
Marradi FI 3 3139 3139
Tredozio FC 9 1212 4351
Palazzuolo sul Senio FI 10 1154 5505
Portico e San Benedetto FC 12 756 6261
San Godenzo FI 14 1167 7428
Premilcuore FC 14 799 8227
Rocca San Casciano FC 17 1910 10137
Modigliana FC 17 4560 14697
Vicchio FI 19 8044 22741
Casola Valsenio RA 19 2617 25358
Dicomano FI 20 5515 30873

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km SW of Faenza (58541 inhabitants)
34 Km S of Imola (69797 inhabitants)
38 Km SW of Forlì (117913 inhabitants)
44 Km NE of Firenze (382808 inhabitants)
47 Km E of Prato (191150 inhabitants)
49 Km NE of Scandicci (50609 inhabitants)
50 Km W of Cesena (96758 inhabitants)
55 Km SE of Bologna (386663 inhabitants)
59 Km E of Pistoia (90315 inhabitants)
61 Km SW of Ravenna (159116 inhabitants)
68 Km NW of Arezzo (99543 inhabitants)
75 Km W of Rimini (147750 inhabitants)
85 Km N of Siena (53903 inhabitants)
87 Km SE of Modena (184973 inhabitants)
87 Km S of Ferrara (133155 inhabitants)
94 Km E of Lucca (89046 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
Rev 1000 Md 2.0
ML-VAX 1.6
2004-06-09
01:42:33
44.05 11.63 2 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 499029
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2004-06-09 01:42:33 ± 0.082
Latitude 44.05 ± 0.00
Longitude 11.63 ± 0.00
Depth (km) 2 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 499029

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) 573.7
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 9
Number of defining phases 9
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) 0.00097
Epicentral distance of station farthest from the epicenter (degree) 0.00567
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2

Field Value
Value 2
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 499029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:56:57

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 499029
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 Takeoff_angle Residual Weight
--.CSNT.Z. 2004-06-09T01:42:46.70 10.0 undecidable manual PG 203 0.0057 0.01 1
--.SFI.Z. 2004-06-09T01:42:41.49 10.0 undecidable manual SG 133 0.0019 0.19 0.1
--.PGD.Z. 2004-06-09T01:42:40.80 10.0 undecidable manual SG 160 0.0016 -0.24 0
--.SEI.Z. 2004-06-09T01:42:40.67 10.0 undecidable manual SG 270 0.0018 -0.04 0.7
--.PGD.Z. 2004-06-09T01:42:37.19 10.0 undecidable manual PG 160 0.0016 -0.06 1.7
--.SEI.Z. 2004-06-09T01:42:37.42 10.0 undecidable manual PG 270 0.0018 -0.05 1.7
--.VMG.Z. 2004-06-09T01:42:37.45 10.0 undecidable manual SG 215 0.001 0.04 0.7
--.SFI.Z. 2004-06-09T01:42:37.80 10.0 undecidable manual PG 133 0.0019 -0.01 1.9
--.VMG.Z. 2004-06-09T01:42:35.68 10.0 undecidable manual PG 215 0.001 0.12 1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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