Earthquake with magnitude of Md 2.2 on date 16-10-1985 and time 01:47:19 (Italy) in region 3 km NE Scarperia e San Piero (FI)

A magnitude Md 2.2 earthquake occured in region: 3 km NE Scarperia e San Piero (FI), on

  • 16-10-1985 00:47:19 (UTC)
  • 16-10-1985 01:47:19 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.98, 11.36 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
Scarperia e San Piero FI 3 12217 12217
Borgo San Lorenzo FI 4 18211 30428
Barberino di Mugello FI 10 10836 41264
Vaglia FI 10 5073 46337
Vicchio FI 10 8044 54381
Firenzuola FI 16 4726 59107
Dicomano FI 17 5515 64622
Vernio PO 18 6060 70682
Vaiano PO 19 9895 80577
Calenzano FI 20 17489 98066
Fiesole FI 20 13969 112035
Rufina FI 20 7346 119381

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Prato (191150 inhabitants)
24 Km NE of Firenze (382808 inhabitants)
28 Km NE of Scandicci (50609 inhabitants)
35 Km E of Pistoia (90315 inhabitants)
51 Km SW of Imola (69797 inhabitants)
54 Km SW of Faenza (58541 inhabitants)
58 Km S of Bologna (386663 inhabitants)
61 Km W of Forlì (117913 inhabitants)
70 Km E of Lucca (89046 inhabitants)
71 Km NW of Arezzo (99543 inhabitants)
73 Km W of Cesena (96758 inhabitants)
73 Km N of Siena (53903 inhabitants)
82 Km E of Pisa (89158 inhabitants)
82 Km SE of Modena (184973 inhabitants)
83 Km SW of Ravenna (159116 inhabitants)
89 Km E of Viareggio (62467 inhabitants)
96 Km E of Livorno (159219 inhabitants)
97 Km SE of Carpi (70699 inhabitants)
97 Km E of Massa (69479 inhabitants)
97 Km W of Rimini (147750 inhabitants)
98 Km S of Ferrara (133155 inhabitants)
99 Km SE of Reggio nell'Emilia (171345 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 2.2 1985-10-16
00:47:19
43.98 11.36 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 14739
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-10-16 00:47:19 ± 0.435
Latitude 43.98 ± 0.05
Longitude 11.36 ± 0.04
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 14739

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) 6084.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.1
Epicentral distance of station closest to the epicenter (degree) 0.00194
Epicentral distance of station farthest from the epicenter (degree) 0.0187
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 14739
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:17:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CTI.Z. 1985-10-16T00:47:54.00 10.0 undecidable manual PN 5 0.0187 0.39 1.1
--.CO9.Z. 1985-10-16T00:47:48.00 10.0 undecidable manual PN 300 0.0142 1.32 0.8
--.AS1.Z. 1985-10-16T00:47:44.00 10.0 undecidable manual PN 133 0.0117 0.92 1.3
--.AR1.Z. 1985-10-16T00:47:41.50 10.0 undecidable manual PN 112 0.0112 -0.62 1.4
--.BD1.Z. 1985-10-16T00:47:39.50 10.0 undecidable manual SG 278 0.0049 0.86 0.6
--.PS9.Z. 1985-10-16T00:47:31.00 10.0 undecidable manual PG 247 0.0058 -1.21 1.1
--.CH1.Z. 1985-10-16T00:47:29.50 10.0 undecidable manual PG 129 0.0049 -0.87 1.3
--.BD1.Z. 1985-10-16T00:47:28.50 10.0 undecidable manual PG 278 0.0049 -1.85 0.6
--.FIR.Z. 1985-10-16T00:47:26.00 10.0 undecidable manual PG 199 0.0019 1.86 0.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download