Earthquake with magnitude of Md 2.3 on date 24-02-1985 and time 12:55:10 (Italy) in region 2 km W Fivizzano (MS)

A magnitude Md 2.3 earthquake occured in region: 2 km W Fivizzano (MS), on

  • 24-02-1985 11:55:10 (UTC)
  • 24-02-1985 12:55:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.24, 10.09 at 12 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
Fivizzano MS 3 7925 7925
Licciana Nardi MS 5 4949 12874
Comano MS 7 714 13588
Casola in Lunigiana MS 8 988 14576
Aulla MS 10 11263 25839
Tresana MS 11 2044 27883
Bagnone MS 12 1887 29770
Minucciano LU 12 2102 31872
Podenzana MS 13 2180 34052
Villafranca in Lunigiana MS 13 4770 38822
Fosdinovo MS 13 4883 43705
Filattiera MS 16 2309 46014
Santo Stefano di Magra SP 17 9360 55374
Bolano SP 17 7813 63187
Castelnuovo Magra SP 17 8415 71602
Sillano Giuncugnano LU 17 1085 72687
Mulazzo MS 17 2424 75111
Sarzana SP 18 21976 97087
Ortonovo SP 18 8277 105364
Piazza al Serchio LU 18 2367 107731
Carrara MS 18 63133 170864
Monchio delle Corti PR 19 933 171797
Vezzano Ligure SP 20 7356 179153

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km N of Carrara (63133 inhabitants)
23 Km N of Massa (69479 inhabitants)
26 Km NE of La Spezia (93959 inhabitants)
43 Km NW of Viareggio (62467 inhabitants)
55 Km NW of Lucca (89046 inhabitants)
63 Km NW of Pisa (89158 inhabitants)
65 Km SW of Parma (192836 inhabitants)
67 Km SW of Reggio nell'Emilia (171345 inhabitants)
74 Km W of Pistoia (90315 inhabitants)
78 Km N of Livorno (159219 inhabitants)
80 Km SW of Modena (184973 inhabitants)
87 Km SW of Carpi (70699 inhabitants)
90 Km W of Prato (191150 inhabitants)
94 Km E of Genova (586655 inhabitants)
96 Km SE of Piacenza (102191 inhabitants)
100 Km S of Cremona (71901 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 2.3 1985-02-24
11:55:10
44.24 10.09 12 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 2389
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-02-24 11:55:10 ± 0.133
Latitude 44.24 ± 0.02
Longitude 10.09 ± 0.02
Depth (km) 12 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 2389

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) 2551.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 156
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.00275
Epicentral distance of station farthest from the epicenter (degree) 0.01449
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 2389
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:07:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ROB.Z. 1985-02-24T11:55:59.50 10.0 undecidable manual SN 272 0.0142 0.92 0
--.IMP.Z. 1985-02-24T11:55:58.70 10.0 undecidable manual SN 259 0.0145 -0.41 0.4
--.FIN.Z. 1985-02-24T11:55:52.50 10.0 undecidable manual SN 269 0.0121 -0.38 0.4
--.GEN.Z. 1985-02-24T11:55:39.80 10.0 undecidable manual SG 282 0.0075 0.04 0.8
--.ROB.Z. 1985-02-24T11:55:39.00 10.0 undecidable manual PN 272 0.0142 0.64 0.4
--.IMP.Z. 1985-02-24T11:55:38.20 10.0 undecidable manual PN 259 0.0145 -0.46 0.8
--.FIN.Z. 1985-02-24T11:55:34.70 10.0 undecidable manual PN 269 0.0121 -0.36 1.1
--.PS9.Z. 1985-02-24T11:55:31.50 10.0 undecidable manual SG 148 0.0054 -0.53 0.4
--.GEN.Z. 1985-02-24T11:55:28.00 10.0 undecidable manual PG 282 0.0075 0.51 0.9
--.BD1.Z. 1985-02-24T11:55:25.50 10.0 undecidable manual SG 115 0.0036 -0.08 1.2
--.PS9.Z. 1985-02-24T11:55:23.00 10.0 undecidable manual PG 148 0.0054 -0.02 2
--.BVT.Z. 1985-02-24T11:55:22.10 10.0 undecidable manual SG 319 0.0028 -0.41 0.5
--.BD1.Z. 1985-02-24T11:55:19.50 10.0 negative manual PG 115 0.0036 0.2 3.6
--.BVT.Z. 1985-02-24T11:55:17.20 10.0 positive manual PG 319 0.0028 -0.33 1.5
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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