Earthquake with magnitude of Md 2.9 on date 09-06-1986 and time 19:58:41 (Italy) in region 3 km SE Macugnaga (VB)

A magnitude Md 2.9 earthquake occured in region: 3 km SE Macugnaga (VB), on

  • 09-06-1986 17:58:41 (UTC)
  • 09-06-1986 19:58:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.95, 7.98 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
Macugnaga VB 3 557 557
Carcoforo VC 7 78 635
Ceppo Morelli VB 7 321 956
Rima San Giuseppe VC 10 59 1015
Alagna Valsesia VC 11 408 1423
Vanzone con San Carlo VB 11 407 1830
Rimasco VC 12 106 1936
Riva Valdobbia VC 13 258 2194
Bannio Anzino VB 14 475 2669
Mollia VC 15 95 2764
Fobello VC 15 196 2960
Cervatto VC 16 47 3007
Calasca-Castiglione VB 16 649 3656
Rimella VC 16 134 3790
Antrona Schieranco VB 17 428 4218
Boccioleto VC 17 205 4423
Rossa VC 17 180 4603
Campertogno VC 17 237 4840
Gressoney-La-Trinité AO 18 303 5143
Balmuccia VC 19 112 5255
Rassa VC 20 71 5326
Scopa VC 20 381 5707

Municipalities with at least 50000 inhabitants

An earthquake occurred to
67 Km W of Varese (80799 inhabitants)
71 Km W of Gallarate (53343 inhabitants)
75 Km NW of Novara (104380 inhabitants)
77 Km W of Busto Arsizio (83106 inhabitants)
83 Km W of Legnano (60262 inhabitants)
87 Km W of Como (84495 inhabitants)
95 Km W of Rho (50434 inhabitants)
98 Km NW of Vigevano (63310 inhabitants)
100 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 1986-06-09
17:58:41
45.95 7.98 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 29009
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-06-09 17:58:41 ± 0.494
Latitude 45.95 ± 0.02
Longitude 7.98 ± 0.04
Depth (km) 10 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 29009

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) 3725.5
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 29
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.9
Epicentral distance of station closest to the epicenter (degree) 0.00283
Epicentral distance of station farthest from the epicenter (degree) 0.02971
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitude information

Md:2.9

Field Value
Value 2.9
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 29009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:30:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.IMP.Z. 1986-06-09T17:59:41.00 10.0 undecidable manual SN 181 0.0182 1.01 0.4
--.AVF.Z. 1986-06-09T17:59:32.40 10.0 undecidable manual PN 286 0.0297 -0.21 1.3
--.STV.Z. 1986-06-09T17:59:31.70 10.0 undecidable manual SN 195 0.0158 -1.77 0.2
--.DA9.Z. 1986-06-09T17:59:28.50 10.0 undecidable manual SN 199 0.0138 0.33 0.8
--.SOO.Z. 1986-06-09T17:59:27.70 10.0 undecidable manual SN 203 0.0141 -1.32 0.4
--.LBF.Z. 1986-06-09T17:59:27.80 10.0 undecidable manual PN 292 0.0265 0.08 1.4
--.SMF.Z. 1986-06-09T17:59:26.80 10.0 undecidable manual PN 285 0.0265 -0.89 1
--.BN9.Z. 1986-06-09T17:59:24.00 10.0 undecidable manual SN 226 0.0115 1.89 0.2
--.FRF.Z. 1986-06-09T17:59:24.40 10.0 undecidable manual PN 202 0.0231 1.87 0.3
--.RRL.Z. 1986-06-09T17:59:23.30 10.0 undecidable manual SN 219 0.0119 0.05 0.8
--.CDF.Z. 1986-06-09T17:59:22.60 10.0 undecidable manual PN 349 0.0226 0.85 1.1
--.HAU.Z. 1986-06-09T17:59:20.50 10.0 undecidable manual PN 332 0.021 1.09 1
--.IMP.Z. 1986-06-09T17:59:16.40 10.0 undecidable manual PN 181 0.0182 1.23 0.9
--.RSP.Z. 1986-06-09T17:59:13.20 10.0 undecidable manual SG 212 0.0084 -0.23 0.8
--.FIN.Z. 1986-06-09T17:59:12.30 10.0 undecidable manual PN 174 0.0157 1.04 1.2
--.ROB.Z. 1986-06-09T17:59:10.40 10.0 undecidable manual PN 182 0.0147 0.51 1.7
--.STV.Z. 1986-06-09T17:59:10.60 10.0 undecidable manual PN 195 0.0158 -0.8 1.4
--.CKI.Z. 1986-06-09T17:59:09.50 10.0 undecidable manual PN 172 0.0138 1.05 1.2
--.DA9.Z. 1986-06-09T17:59:07.00 10.0 undecidable manual PN 199 0.0138 -1.34 0.9
--.SOO.Z. 1986-06-09T17:59:07.90 10.0 undecidable manual PN 203 0.0141 -0.93 1.4
--.LSD.Z. 1986-06-09T17:59:06.60 10.0 undecidable manual SG 229 0.0068 -0.79 0.9
--.RRL.Z. 1986-06-09T17:59:06.10 10.0 undecidable manual PN 219 0.0119 0.6 1.7
--.BN9.Z. 1986-06-09T17:59:05.00 10.0 undecidable manual PN 226 0.0115 0.16 2
--.RSP.Z. 1986-06-09T17:58:59.00 10.0 undecidable manual PG 212 0.0084 -0.83 1.5
--.VAI.Z. 1986-06-09T17:58:59.00 10.0 undecidable manual SG 98 0.0049 -1.97 0.2
--.LSD.Z. 1986-06-09T17:58:55.10 10.0 undecidable manual PG 229 0.0068 -1.24 2
--.ORO.Z. 1986-06-09T17:58:55.00 10.0 undecidable manual SG 179 0.0028 1.58 0.4
--.VAI.Z. 1986-06-09T17:58:51.00 10.0 undecidable manual PG 98 0.0049 -1.64 0.6
--.ORO.Z. 1986-06-09T17:58:49.00 10.0 undecidable manual PG 179 0.0028 0.72 1.6
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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