Earthquake with magnitude of Md 2.5 on date 03-04-2004 and time 23:34:37 (UTC) in region 3 km NE Monteverdi Marittimo (PI)

A magnitude Md 2.5 earthquake occured in region: 3 km NE Monteverdi Marittimo (PI), on

  • 03-04-2004 23:34:37 (UTC)
  • 04-04-2004 01:34:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1990, 10.7410 at 6 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
Monteverdi Marittimo PI 3 758 758
Sassetta LI 11 514 1272
Monterotondo Marittimo GR 11 1371 2643
Castagneto Carducci LI 11 9010 11653
Castelnuovo di Val di Cecina PI 14 2231 13884
Bibbona LI 14 3175 17059
Suvereto LI 14 3072 20131
Casale Marittimo PI 15 1122 21253
Guardistallo PI 16 1234 22487
Pomarance PI 16 5897 28384
Montescudaio PI 17 2144 30528
Campiglia Marittima LI 18 13218 43746
San Vincenzo LI 20 6911 50657

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km W of Siena (53903 inhabitants)
53 Km SE of Livorno (159219 inhabitants)
57 Km NW of Grosseto (82087 inhabitants)
64 Km SE of Pisa (89158 inhabitants)
72 Km SW of Scandicci (50609 inhabitants)
74 Km S of Lucca (89046 inhabitants)
76 Km SW of Firenze (382808 inhabitants)
81 Km SW of Prato (191150 inhabitants)
83 Km S of Pistoia (90315 inhabitants)
84 Km SE of Viareggio (62467 inhabitants)
97 Km W 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
2004-04-03
23:34:37
43.199 10.741 6 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 495829
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2004-04-03 23:34:37 ± 0.344
Latitude 43.1990 ± 0.0202
Longitude 10.7410 ± 0.0203
Depth (km) 6 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 495829

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) 2778.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 222
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.01635
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 11
Type of magnitude Md
Reference to an origin 495829
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:53:34

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 9
Type of magnitude ML
Reference to an origin 495829
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
--.PGD.Z. 2004-04-03T23:35:11.38 10.0 undecidable manual SG 46 0.9657 0.23 0.6
--.SEI.Z. 2004-04-03T23:35:10.74 10.0 undecidable manual SG 27 0.9657 0.11 0.7
--.BOB.Z. 2004-04-03T23:35:09.10 10.0 undecidable manual PN 329 1.8204 0.39 0.9
--.VMG.Z. 2004-04-03T23:35:09.28 10.0 undecidable manual SG 37 0.9546 -1.16 0.1
--.BDI.Z. 2004-04-03T23:35:07.41 10.0 undecidable manual SG 353 0.8658 -0.18 0.6
--.FSSB.Z. 2004-04-03T23:35:04.80 10.0 undecidable manual PN 71 1.554 -0.27 1.1
--.ASS.Z. 2004-04-03T23:35:02.34 10.0 undecidable manual PN 95 1.3875 -0.57 0.8
--.ZCCA.Z. 2004-04-03T23:35:01.22 10.0 undecidable manual PN 8 1.1544 1.53 0
--.ERBM.Z. 2004-04-03T23:35:00.74 10.0 undecidable manual PN 349 1.2432 -0.01 1.5
--.GSCL.Z. 2004-04-03T23:34:59.81 10.0 undecidable manual PN 354 1.1544 0.25 1.4
--.PGD.Z. 2004-04-03T23:34:57.20 10.0 undecidable manual PG 46 0.9657 0.46 1.2
--.SFI.Z. 2004-04-03T23:34:57.67 10.0 undecidable manual PN 48 1.0656 -0.67 0.8
--.VMG.Z. 2004-04-03T23:34:56.90 10.0 undecidable manual PG 37 0.9546 0.56 1
--.SEI.Z. 2004-04-03T23:34:56.71 10.0 undecidable manual PG 27 0.9657 0.27 1.5
--.PII.Z. 2004-04-03T23:34:56.71 10.0 undecidable manual SG 343 0.5439 -0.47 0.5
--.CRE.Z. 2004-04-03T23:34:56.81 10.0 undecidable manual PG 64 0.9657 0.2 1.6
--.BDI.Z. 2004-04-03T23:34:54.10 10.0 undecidable manual PG 353 0.8658 -0.58 1
--.PII.Z. 2004-04-03T23:34:48.25 10.0 positive manual PG 343 0.5439 -0.42 2.5
--.GRFL.Z. 2004-04-03T23:34:44.32 10.0 undecidable manual SG 106 0.1665 0.06 0.7
--.GRFL.Z. 2004-04-03T23:34:41.20 10.0 undecidable manual PG 106 0.1665 -0.19 1.6
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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