Earthquake with magnitude of Md 2.0 on date 02-06-1985 and time 05:01:31 (Italy) in region 5 km S Montelupo Fiorentino (FI)

A magnitude Md 2.0 earthquake occured in region: 5 km S Montelupo Fiorentino (FI), on

  • 02-06-1985 03:01:31 (UTC)
  • 02-06-1985 05:01:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.69, 11.02 at 10 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
Montelupo Fiorentino FI 5 14098 14098
Empoli FI 6 48109 62207
Capraia e Limite FI 7 7670 69877
Montespertoli FI 7 13537 83414
Castelfiorentino FI 10 17504 100918
Lastra a Signa FI 12 20156 121074
Signa FI 12 19179 140253
Vinci FI 13 14604 154857
San Miniato PI 13 27934 182791
Cerreto Guidi FI 14 10870 193661
Carmignano PO 14 14450 208111
San Casciano in Val di Pesa FI 14 17062 225173
Poggio a Caiano PO 15 10007 235180
Scandicci FI 15 50609 285789
Certaldo FI 16 16121 301910
Fucecchio FI 17 23618 325528
Lamporecchio PT 17 7508 333036
Montaione FI 17 3700 336736
Gambassi Terme FI 18 4870 341606
Campi Bisenzio FI 18 46166 387772
Quarrata PT 18 26190 413962
Larciano PT 19 6394 420356
Tavarnelle Val di Pesa FI 19 7800 428156
Santa Croce sull'Arno PI 19 14601 442757
Impruneta FI 19 14615 457372

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km SW of Scandicci (50609 inhabitants)
21 Km W of Firenze (382808 inhabitants)
22 Km SW of Prato (191150 inhabitants)
28 Km S of Pistoia (90315 inhabitants)
45 Km E of Lucca (89046 inhabitants)
49 Km NW of Siena (53903 inhabitants)
49 Km E of Pisa (89158 inhabitants)
59 Km E of Livorno (159219 inhabitants)
65 Km E of Viareggio (62467 inhabitants)
74 Km W of Arezzo (99543 inhabitants)
80 Km E of Massa (69479 inhabitants)
85 Km SE of Carrara (63133 inhabitants)
93 Km SW of Imola (69797 inhabitants)
93 Km S of Bologna (386663 inhabitants)
96 Km SW of Faenza (58541 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 1985-06-02
03:01:31
43.69 11.02 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 7829
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-06-02 03:01:31 ± 0.158
Latitude 43.69 ± 0.01
Longitude 11.02 ± 0.01
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 7829

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) 1698.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 180
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.0017
Epicentral distance of station farthest from the epicenter (degree) 0.00607
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2

Field Value
Value 2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 7829
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:11:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CH1.Z. 1985-06-02T03:01:55.00 10.0 undecidable manual SG 95 0.0061 -0.5 0
--.BD1.Z. 1985-06-02T03:01:49.00 10.0 undecidable manual SG 321 0.0043 -0.17 0.4
--.CH1.Z. 1985-06-02T03:01:45.80 10.0 undecidable manual PG 95 0.0061 0.28 0.4
--.BD1.Z. 1985-06-02T03:01:42.00 10.0 undecidable manual PG 321 0.0043 0.14 1.2
--.FIR.N. 1985-06-02T03:01:40.00 10.0 undecidable manual SG 64 0.0017 0.06 0.6
--.PS9.Z. 1985-06-02T03:01:39.50 10.0 undecidable manual PG 275 0.0032 -0.1 1.4
--.FIR.Z. 1985-06-02T03:01:36.50 10.0 positive manual PG 64 0.0017 -0.04 3.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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