Earthquake with magnitude of Md 2.5 on date 05-12-1986 and time 15:59:25 (Italy) in region 3 km SE Serravalle di Chienti (MC)

A magnitude Md 2.5 earthquake occured in region: 3 km SE Serravalle di Chienti (MC), on

  • 05-12-1986 14:59:25 (UTC)
  • 05-12-1986 15:59:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0520, 12.9780 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
Serravalle di Chienti MC 3 1070 1070
Pieve Torina MC 6 1458 2528
Muccia MC 6 915 3443
Monte Cavallo MC 7 145 3588
Pievebovigliana MC 9 866 4454
Fiordimonte MC 9 202 4656
Sefro MC 11 422 5078
Camerino MC 12 6974 12052
Pioraco MC 14 1134 13186
Fiastra MC 15 559 13745
Fiuminata MC 16 1402 15147
Visso MC 16 1107 16254
Acquacanina MC 16 121 16375
Nocera Umbra PG 17 5839 22214
Ussita MC 18 444 22658
Valtopina PG 18 1398 24056
Sellano PG 19 1079 25135
Castelraimondo MC 19 4587 29722
Preci PG 20 724 30446

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km E of Foligno (57155 inhabitants)
48 Km E of Perugia (166134 inhabitants)
61 Km NE of Terni (111501 inhabitants)
74 Km NW of Teramo (54892 inhabitants)
77 Km SW of Ancona (100861 inhabitants)
85 Km NW of L'Aquila (69753 inhabitants)
88 Km S of Fano (60888 inhabitants)
96 Km S of Pesaro (94582 inhabitants)
100 Km NE of Viterbo (67173 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 2.5 1986-12-05
14:59:25
43.052 12.978 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 37839
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-12-05 14:59:25 ± 0.128
Latitude 43.0520 ± 0.0055
Longitude 12.9780 ± 0.0075
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 37839

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) 865.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 275
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 5
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) 0.00210
Epicentral distance of station farthest from the epicenter (degree) 0.00842
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:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 37839
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:37:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CRE.Z. 1986-12-05T14:59:44.00 10.0 undecidable manual PG 307 0.9324 -0.12 0.4
--.ARV.Z. 1986-12-05T14:59:42.00 10.0 undecidable manual SG 356 0.444 0.09 0.5
--.ARV.Z. 1986-12-05T14:59:35.00 10.0 undecidable manual PG 356 0.444 -0.03 1.2
--.ASS.Z. 1986-12-05T14:59:35.20 10.0 undecidable manual SG 272 0.2331 0 0.7
--.ASS.Z. 1986-12-05T14:59:31.20 10.0 positive manual PG 272 0.2331 0.05 2.2
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