Earthquake with magnitude of Md 2.3 on date 07-06-1986 and time 07:45:11 (Italy) in region 3 km E Castiglione dei Pepoli (BO)

A magnitude Md 2.3 earthquake occured in region: 3 km E Castiglione dei Pepoli (BO), on

  • 07-06-1986 05:45:11 (UTC)
  • 07-06-1986 07:45:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.13, 11.19 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
Castiglione dei Pepoli BO 3 5648 5648
Vernio PO 9 6060 11708
Camugnano BO 9 1885 13593
San Benedetto Val di Sambro BO 10 4315 17908
Castel di Casio BO 13 3448 21356
Cantagallo PO 13 3105 24461
Monghidoro BO 14 3749 28210
Grizzana Morandi BO 14 3916 32126
Barberino di Mugello FI 15 10836 42962
Firenzuola FI 15 4726 47688
Sambuca Pistoiese PT 16 1626 49314
Alto Reno Terme BO 17 6960 56274
Monzuno BO 18 6328 62602
Vergato BO 18 7639 70241
Loiano BO 19 4294 74535
Vaiano PO 19 9895 84430

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km N of Prato (191150 inhabitants)
31 Km NE of Pistoia (90315 inhabitants)
41 Km N of Firenze (382808 inhabitants)
42 Km N of Scandicci (50609 inhabitants)
42 Km SW of Bologna (386663 inhabitants)
49 Km SW of Imola (69797 inhabitants)
58 Km W of Faenza (58541 inhabitants)
61 Km SE of Modena (184973 inhabitants)
64 Km NE of Lucca (89046 inhabitants)
69 Km W of Forlì (117913 inhabitants)
76 Km SE of Carpi (70699 inhabitants)
77 Km SE of Reggio nell'Emilia (171345 inhabitants)
78 Km NE of Pisa (89158 inhabitants)
81 Km E of Viareggio (62467 inhabitants)
84 Km W of Cesena (96758 inhabitants)
84 Km E of Massa (69479 inhabitants)
86 Km SW of Ferrara (133155 inhabitants)
87 Km W of Ravenna (159116 inhabitants)
87 Km E of Carrara (63133 inhabitants)
91 Km N of Siena (53903 inhabitants)
93 Km NW of Arezzo (99543 inhabitants)
96 Km NE of Livorno (159219 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 1986-06-07
05:45:11
44.13 11.19 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 28859
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-06-07 05:45:11 ± 0.327
Latitude 44.13 ± 0.03
Longitude 11.19 ± 0.02
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 28859

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) 3509.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
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) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.0038
Epicentral distance of station farthest from the epicenter (degree) 0.0174
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 28859
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:30:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CTI.Z. 1986-06-07T05:45:46.00 10.0 undecidable manual PN 9 0.0174 0.57 0.9
--.CRE.Z. 1986-06-07T05:45:40.00 10.0 undecidable manual SG 132 0.0067 1.11 0.2
--.ARV.Z. 1986-06-07T05:45:37.50 10.0 undecidable manual PN 115 0.0127 -0.69 1
--.PS9.Z. 1986-06-07T05:45:36.00 10.0 undecidable manual SG 229 0.0057 0.92 0.3
--.BDI.Z. 1986-06-07T05:45:29.00 10.0 undecidable manual SG 260 0.0038 0.37 0.8
--.CRE.Z. 1986-06-07T05:45:27.50 10.0 undecidable manual PG 132 0.0067 0 2.2
--.PS9.Z. 1986-06-07T05:45:24.50 10.0 undecidable manual PG 229 0.0057 -0.79 1.1
--.BDI.Z. 1986-06-07T05:45:21.00 10.0 undecidable manual PG 260 0.0038 -0.58 1.5
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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