Earthquake with magnitude of Md 2.2 on date 20-03-1985 and time 21:08:14 (Italy) in region 6 km W Lizzano in Belvedere (BO)

A magnitude Md 2.2 earthquake occured in region: 6 km W Lizzano in Belvedere (BO), on

  • 20-03-1985 20:08:14 (UTC)
  • 20-03-1985 21:08:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.14, 10.83 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
Lizzano in Belvedere BO 6 2212 2212
Cutigliano PT 7 1488 3700
Fanano MO 8 2989 6689
San Marcello Pistoiese PT 10 6416 13105
Gaggio Montano BO 11 4878 17983
Sestola MO 11 2508 20491
Alto Reno Terme BO 12 6960 27451
Abetone PT 13 621 28072
Piteglio PT 13 1683 29755
Sambuca Pistoiese PT 14 1626 31381
Montecreto MO 15 940 32321
Fiumalbo MO 15 1280 33601
Montese MO 17 3353 36954
Castel di Casio BO 17 3448 40402
Riolunato MO 17 712 41114
Pievepelago MO 18 2222 43336

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NW of Pistoia (90315 inhabitants)
36 Km NW of Prato (191150 inhabitants)
42 Km NE of Lucca (89046 inhabitants)
51 Km NW of Scandicci (50609 inhabitants)
54 Km NW of Firenze (382808 inhabitants)
55 Km NE of Viareggio (62467 inhabitants)
56 Km E of Massa (69479 inhabitants)
57 Km SW of Bologna (386663 inhabitants)
57 Km S of Modena (184973 inhabitants)
58 Km NE of Pisa (89158 inhabitants)
59 Km E of Carrara (63133 inhabitants)
64 Km S of Reggio nell'Emilia (171345 inhabitants)
72 Km S of Carpi (70699 inhabitants)
74 Km W of Imola (69797 inhabitants)
78 Km NE of Livorno (159219 inhabitants)
80 Km E of La Spezia (93959 inhabitants)
83 Km SE of Parma (192836 inhabitants)
86 Km W of Faenza (58541 inhabitants)
97 Km W of Forlì (117913 inhabitants)
100 Km SW of Ferrara (133155 inhabitants)
100 Km NW of Siena (53903 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 2.2 1985-03-20
20:08:14
44.14 10.83 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 3419
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-03-20 20:08:14 ± 0.261
Latitude 44.14 ± 0.02
Longitude 10.83 ± 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 3419

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) 2112.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 237
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00162
Epicentral distance of station farthest from the epicenter (degree) 0.00858
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 3419
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:08:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CH1.Z. 1985-03-20T20:08:48.00 10.0 undecidable manual SG 121 0.0086 0.54 0.1
--.CH1.Z. 1985-03-20T20:08:33.50 10.0 undecidable manual PG 121 0.0086 -0.19 1.2
--.PS9.Z. 1985-03-20T20:08:32.00 10.0 undecidable manual SG 207 0.0042 -0.01 0.9
--.PS9.Z. 1985-03-20T20:08:24.50 10.0 undecidable manual PG 207 0.0042 -0.27 1.3
--.BD1.Z. 1985-03-20T20:08:23.00 10.0 undecidable manual SG 244 0.0016 0.29 0.5
--.BD1.Z. 1985-03-20T20:08:19.50 10.0 undecidable manual PG 244 0.0016 0.11 2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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