Earthquake with magnitude of Md 2.1 on date 08-02-1986 and time 15:25:42 (Italy) in region 6 km SW Fiuminata (MC)

A magnitude Md 2.1 earthquake occured in region: 6 km SW Fiuminata (MC), on

  • 08-02-1986 14:25:42 (UTC)
  • 08-02-1986 15:25:42 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1630, 12.8750 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
Fiuminata MC 6 1402 1402
Sefro MC 6 422 1824
Nocera Umbra PG 9 5839 7663
Pioraco MC 9 1134 8797
Gualdo Tadino PG 11 15208 24005
Esanatoglia MC 12 2034 26039
Serravalle di Chienti MC 12 1070 27109
Valtopina PG 15 1398 28507
Matelica MC 15 9981 38488
Castelraimondo MC 16 4587 43075
Camerino MC 16 6974 50049
Muccia MC 16 915 50964
Fossato di Vico PG 17 2840 53804
Gagliole MC 18 620 54424
Pieve Torina MC 19 1458 55882
Fabriano AN 20 31480 87362
Cerreto d'Esi AN 20 3817 91179

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NE of Foligno (57155 inhabitants)
40 Km E of Perugia (166134 inhabitants)
69 Km N of Terni (111501 inhabitants)
73 Km SW of Ancona (100861 inhabitants)
77 Km S of Fano (60888 inhabitants)
83 Km S of Pesaro (94582 inhabitants)
87 Km E of Arezzo (99543 inhabitants)
88 Km NW of Teramo (54892 inhabitants)
100 Km NW of L'Aquila (69753 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 2.1 1986-02-08
14:25:42
43.163 12.875 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 22339
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-02-08 14:25:42 ± 0.067
Latitude 43.1630 ± 0.0045
Longitude 12.8750 ± 0.0051
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 22339

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) 649.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
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) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00170
Epicentral distance of station farthest from the epicenter (degree) 0.00300
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 22339
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:24:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1986-02-08T14:25:55.00 10.0 undecidable manual SG 8 0.333 0.05 0.7
--.CM8.Z. 1986-02-08T14:25:50.57 10.0 undecidable manual SG 80 0.1998 0.14 0.8
--.ASS.Z. 1986-02-08T14:25:50.00 10.0 undecidable manual SG 238 0.1887 -0.18 0.5
--.ARV.Z. 1986-02-08T14:25:49.50 10.0 undecidable manual PG 8 0.333 -0.04 1.8
--.ASS.Z. 1986-02-08T14:25:47.00 10.0 undecidable manual PG 238 0.1887 0.22 0.9
--.CM8.Z. 1986-02-08T14:25:46.78 10.0 undecidable manual PG 80 0.1998 -0.14 1.3
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download