Earthquake with magnitude of M 2.5 on date 07-01-1986 and time 17:36:23 (Italy) in region 2 km E Calizzano (SV)

A magnitude M 2.5 earthquake occured in region: 2 km E Calizzano (SV), on

  • 07-01-1986 16:36:23 (UTC)
  • 07-01-1986 17:36:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.24, 8.14 at 7 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
Calizzano SV 2 1475 1475
Bardineto SV 5 756 2231
Osiglia SV 7 444 2675
Massimino SV 9 113 2788
Bormida SV 9 387 3175
Murialdo SV 9 841 4016
Priola CN 9 701 4717
Garessio CN 10 3244 7961
Magliolo SV 10 974 8935
Bagnasco CN 10 1035 9970
Rialto SV 11 564 10534
Perlo CN 11 116 10650
Giustenice SV 11 977 11627
Erli SV 12 245 11872
Castelvecchio di Rocca Barbena SV 12 145 12017
Tovo San Giacomo SV 12 2582 14599
Castelnuovo di Ceva CN 13 110 14709
Calice Ligure SV 13 1730 16439
Nucetto CN 13 430 16869
Balestrino SV 13 595 17464
Boissano SV 13 2492 19956
Toirano SV 14 2644 22600
Battifollo CN 14 219 22819
Mallare SV 14 1146 23965
Roccavignale SV 14 752 24717
Zuccarello SV 14 309 25026
Pallare SV 15 923 25949
Lisio CN 15 201 26150
Viola CN 15 391 26541
Millesimo SV 15 3383 29924
Castelbianco SV 15 330 30254
Orco Feglino SV 15 890 31144
Pietra Ligure SV 15 8992 40136
Plodio SV 16 650 40786
Montezemolo CN 16 259 41045
Loano SV 16 11407 52452
Priero CN 16 529 52981
Scagnello CN 16 194 53175
Borgio Verezzi SV 16 2205 55380
Borghetto Santo Spirito SV 16 4948 60328
Cosseria SV 16 1105 61433
Nasino SV 16 207 61640
Cisano sul Neva SV 17 2085 63725
Cengio SV 17 3563 67288
Ceriale SV 18 5561 72849
Vezzi Portio SV 18 809 73658
Carcare SV 18 5587 79245
Alto CN 18 128 79373
Finale Ligure SV 18 11711 91084
Sale delle Langhe CN 18 486 91570
Arnasco SV 18 645 92215
Ceva CN 18 5782 97997
Pamparato CN 18 302 98299
Sale San Giovanni CN 19 183 98482
Monasterolo Casotto CN 19 89 98571
Vendone SV 19 388 98959
Mombasiglio CN 19 609 99568
Saliceto CN 20 1323 100891
Altare SV 20 2108 102999

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km W of Savona (61345 inhabitants)
50 Km E of Cuneo (56081 inhabitants)
54 Km NE of Sanremo (54807 inhabitants)
66 Km W of Genova (586655 inhabitants)
74 Km S of Asti (76202 inhabitants)
84 Km SW of Alessandria (93943 inhabitants)
92 Km SE of Moncalieri (57294 inhabitants)
100 Km SE 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
M 2.5 1986-01-07
16:36:23
44.24 8.14 7 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 19559
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-01-07 16:36:23 ± 0.369
Latitude 44.24 ± 0.03
Longitude 8.14 ± 0.02
Depth (km) 7 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 19559

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) 3398.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 194
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00049
Epicentral distance of station farthest from the epicenter (degree) 0.00518
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

M:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 19559
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:48:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.STV.Z. 1986-01-07T16:36:43.90 10.0 undecidable manual SG 271 0.0052 -0.73 0
--.IMP.Z. 1986-01-07T16:36:37.80 10.0 undecidable manual SG 208 0.0032 -0.02 0.5
--.STV.Z. 1986-01-07T16:36:36.10 10.0 undecidable manual PG 271 0.0052 0.38 0.3
--.IMP.Z. 1986-01-07T16:36:32.00 10.0 undecidable manual PG 208 0.0032 0.21 0.8
--.ROB.Z. 1986-01-07T16:36:31.80 10.0 undecidable manual SG 288 0.0018 0.1 0.7
--.ROB.Z. 1986-01-07T16:36:28.20 10.0 undecidable manual PG 288 0.0018 -0.06 2.6
--.FIN.Z. 1986-01-07T16:36:26.80 10.0 undecidable manual SG 122 0.0005 -0.13 0.7
--.FIN.Z. 1986-01-07T16:36:25.40 10.0 undecidable manual PG 122 0.0005 -0.11 2.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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