Earthquake with magnitude of Md 2.4 on date 02-08-2004 and time 19:25:15 (UTC) in region 3 km SE Gorreto (GE)

A magnitude Md 2.4 earthquake occured in region: 3 km SE Gorreto (GE), on

  • 02-08-2004 19:25:15 (UTC)
  • 02-08-2004 21:25:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5910, 9.3250 at 5 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
Gorreto GE 3 97 97
Ottone PC 4 516 613
Rovegno GE 4 554 1167
Fontanigorda GE 5 277 1444
Fascia GE 8 81 1525
Rezzoaglio GE 9 995 2520
Zerba PC 9 77 2597
Rondanina GE 9 62 2659
Montebruno GE 9 240 2899
Cerignale PC 10 127 3026
Santo Stefano d'Aveto GE 11 1126 4152
Propata GE 11 142 4294
Carrega Ligure AL 12 84 4378
Corte Brugnatella PC 14 586 4964
Ferriere PC 15 1294 6258
Torriglia GE 15 2311 8569
Favale di Malvaro GE 16 466 9035
Brallo di Pregola PV 17 599 9634
Lorsica GE 18 468 10102
Coli PC 18 879 10981
Neirone GE 18 916 11897
Borzonasca GE 19 2049 13946

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NE of Genova (586655 inhabitants)
59 Km SW of Piacenza (102191 inhabitants)
67 Km SE of Alessandria (93943 inhabitants)
67 Km NW of La Spezia (93959 inhabitants)
67 Km S of Pavia (72576 inhabitants)
74 Km E of Savona (61345 inhabitants)
82 Km SW of Cremona (71901 inhabitants)
83 Km W of Parma (192836 inhabitants)
84 Km NW of Carrara (63133 inhabitants)
89 Km SE of Vigevano (63310 inhabitants)
90 Km NW of Massa (69479 inhabitants)
95 Km E of Asti (76202 inhabitants)
98 Km S of Milano (1345851 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 2.4
ML-VAX 1.6
2004-08-02
19:25:15
44.591 9.325 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 502439
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2004-08-02 19:25:15 ± 0.236
Latitude 44.5910 ± 0.0168
Longitude 9.3250 ± 0.0259
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 502439

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) 2772.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 141
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00170
Epicentral distance of station farthest from the epicenter (degree) 0.01101
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 502439
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 01:00:31

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 502439
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
--.IMI.Z. 2004-08-02T19:25:55.56 10.0 undecidable manual SN 236 1.221 -1.04 0.1
--.BDI.Z. 2004-08-02T19:25:51.29 10.0 undecidable manual SG 119 1.0434 -0.87 0.1
--.FIN.Z. 2004-08-02T19:25:46.80 10.0 undecidable manual SG 244 0.8769 -0.68 0.3
--.IMI.Z. 2004-08-02T19:25:39.77 10.0 undecidable manual PN 236 1.221 0.53 0.9
--.BDI.Z. 2004-08-02T19:25:37.12 10.0 undecidable manual PG 119 1.0434 0.45 1.1
--.FIN.Z. 2004-08-02T19:25:33.88 10.0 undecidable manual PG 244 0.8769 0.33 1.5
--.BOB.Z. 2004-08-02T19:25:23.61 10.0 undecidable manual SG 26 0.1887 0.34 0.6
--.BOB.Z. 2004-08-02T19:25:19.77 10.0 positive manual PG 26 0.1887 -0.22 3.4
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