Earthquake with magnitude of Md 2.4 on date 14-11-1986 and time 00:12:05 (Italy) in region 6 km SW Premilcuore (FC)

A magnitude Md 2.4 earthquake occured in region: 6 km SW Premilcuore (FC), on

  • 13-11-1986 23:12:05 (UTC)
  • 14-11-1986 00:12:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.95, 11.72 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
Premilcuore FC 6 799 799
San Godenzo FI 8 1167 1966
Portico e San Benedetto FC 10 756 2722
Tredozio FC 15 1212 3934
Santa Sofia FC 15 4136 8070
Londa FI 15 1840 9910
Rocca San Casciano FC 16 1910 11820
Galeata FC 16 2516 14336
Dicomano FI 17 5515 19851
Marradi FI 17 3139 22990
Pratovecchio Stia AR 17 5845 28835
Civitella di Romagna FC 19 3786 32621

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km SW of Faenza (58541 inhabitants)
40 Km SW of Forlì (117913 inhabitants)
42 Km E of Firenze (382808 inhabitants)
45 Km S of Imola (69797 inhabitants)
47 Km W of Cesena (96758 inhabitants)
48 Km E of Scandicci (50609 inhabitants)
50 Km E of Prato (191150 inhabitants)
55 Km N of Arezzo (99543 inhabitants)
64 Km E of Pistoia (90315 inhabitants)
65 Km SW of Ravenna (159116 inhabitants)
68 Km SE of Bologna (386663 inhabitants)
69 Km W of Rimini (147750 inhabitants)
76 Km NE of Siena (53903 inhabitants)
96 Km W of Pesaro (94582 inhabitants)
98 Km E of Lucca (89046 inhabitants)
99 Km S of Ferrara (133155 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 2.4 1986-11-13
23:12:05
43.95 11.72 5 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 37009
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-11-13 23:12:05 ± 0.374
Latitude 43.95 ± 0.02
Longitude 11.72 ± 0.03
Depth (km) 5 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 37009

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) 2972.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 323
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) 0.00324
Epicentral distance of station farthest from the epicenter (degree) 0.00996
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:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 37009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:37:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ASS.Z. 1986-11-13T23:12:43.50 10.0 undecidable manual SN 142 0.01 -0.4 0.1
--.ARV.Z. 1986-11-13T23:12:40.50 10.0 undecidable manual SG 116 0.0089 0.2 0.5
--.ASS.Z. 1986-11-13T23:12:28.00 10.0 undecidable manual PN 142 0.01 0.28 0.8
--.ARV.Z. 1986-11-13T23:12:25.50 10.0 undecidable manual PG 116 0.0089 -0.13 1.7
--.CRE.Z. 1986-11-13T23:12:20.00 10.0 undecidable manual SG 152 0.0032 0.14 1.1
--.CRE.Z. 1986-11-13T23:12:13.70 10.0 undecidable manual PG 152 0.0032 -0.13 1.8
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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