Earthquake with magnitude of Md 2.9 on date 19-01-1986 and time 07:54:41 (Italy) in region Confine Italia Svizzera (SVIZZERA)

A magnitude Md 2.9 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on

  • 19-01-1986 06:54:41 (UTC)
  • 19-01-1986 07:54:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.955, 7.868 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
Macugnaga VB 8 557 557
Alagna Valsesia VC 13 408 965
Gressoney-La-Trinité AO 15 303 1268
Carcoforo VC 15 78 1346
Riva Valdobbia VC 15 258 1604
Ceppo Morelli VB 16 321 1925
Rima San Giuseppe VC 16 59 1984
Rimasco VC 19 106 2090
Vanzone con San Carlo VB 19 407 2497
Gressoney-Saint-Jean AO 20 807 3304
Mollia VC 20 95 3399

Municipalities with at least 50000 inhabitants

An earthquake occurred to
76 Km W of Varese (80799 inhabitants)
79 Km W of Gallarate (53343 inhabitants)
81 Km NW of Novara (104380 inhabitants)
85 Km W of Busto Arsizio (83106 inhabitants)
91 Km W of Legnano (60262 inhabitants)
96 Km W of Como (84495 inhabitants)
99 Km N of Torino (890529 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 2.9 1986-01-19
06:54:41
45.955 7.868 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 21329
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-01-19 06:54:41 ± 1.369
Latitude 45.9550 ± 0.0993
Longitude 7.8680 ± 0.0615
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 21329

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) 12022.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 223
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00567
Epicentral distance of station farthest from the epicenter (degree) 0.02364
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:2.9

Field Value
Value 2.9
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 21329
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:23:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.FIN.Z. 1986-01-19T06:55:36.00 10.0 undecidable manual SN 172 0.0159 1.21 0.4
--.ROB.Z. 1986-01-19T06:55:33.30 10.0 undecidable manual SN 180 0.0148 1.14 0.4
--.CTI.Z. 1986-01-19T06:55:26.50 10.0 undecidable manual PN? 87 0.0236 2.56 0
--.IMP.Z. 1986-01-19T06:55:15.40 10.0 undecidable manual PN 180 0.0183 -0.44 1.7
--.FIN.Z. 1986-01-19T06:55:12.00 10.0 undecidable manual PN 172 0.0159 -0.07 2
--.STV.Z. 1986-01-19T06:55:10.90 10.0 undecidable manual PN 193 0.0157 -0.93 1.3
--.ROB.Z. 1986-01-19T06:55:09.90 10.0 undecidable manual PN 180 0.0148 -0.65 1.7
--.BN9.Z. 1986-01-19T06:55:05.50 10.0 undecidable manual PN 223 0.011 0.76 1.6
--.VAI.Z. 1986-01-19T06:55:04.50 10.0 undecidable manual SG 98 0.0057 0.24 0.8
--.VAI.Z. 1986-01-19T06:54:52.50 10.0 undecidable manual PG? 98 0.0057 -1.94 0.1
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