Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.0 on date 04-08-1992 and time 17:56:36 (Italy) in region 4 km E Cairo Montenotte (SV)

A magnitude Md 2.0 earthquake occured in region: 4 km E Cairo Montenotte (SV), on

  • 04-08-1992 15:56:36 (UTC)
  • 04-08-1992 17:56:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3900, 8.3180 at 6 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Cairo Montenotte SV 4 13269 13269
Carcare SV 4 5587 18856
Altare SV 6 2108 20964
Dego SV 7 1985 22949
Plodio SV 7 650 23599
Cosseria SV 7 1105 24704
Pallare SV 8 923 25627
Cengio SV 9 3563 29190
Giusvalla SV 9 441 29631
Millesimo SV 9 3383 33014
Roccavignale SV 10 752 33766
Piana Crixia SV 11 788 34554
Mallare SV 11 1146 35700
Pontinvrea SV 11 847 36547
Saliceto CN 12 1323 37870
Quiliano SV 13 7232 45102
Mioglia SV 14 526 45628
Bormida SV 14 387 46015
Montezemolo CN 14 259 46274
Stella SV 14 3009 49283
Gottasecca CN 14 148 49431
Merana AL 14 189 49620
Camerana CN 15 631 50251
Murialdo SV 15 841 51092
Pareto AL 15 554 51646
Osiglia SV 15 444 52090
Castelnuovo di Ceva CN 15 110 52200
Castelletto Uzzone CN 16 331 52531
Savona SV 16 61345 113876
Albisola Superiore SV 16 10163 124039
Vado Ligure SV 16 8336 132375
Albissola Marina SV 16 5487 137862
Sassello SV 17 1777 139639
Spigno Monferrato AL 17 1050 140689
Prunetto CN 18 451 141140
Priero CN 18 529 141669
Monesiglio CN 18 645 142314
Vezzi Portio SV 18 809 143123
Sale delle Langhe CN 19 486 143609
Bergeggi SV 19 1129 144738
Celle Ligure SV 19 5237 149975
Orco Feglino SV 19 890 150865
Serole AT 19 123 150988
Sale San Giovanni CN 19 183 151171
Rialto SV 19 564 151735
Pezzolo Valle Uzzone CN 19 344 152079
Perlo CN 20 116 152195
Spotorno SV 20 3803 155998
Gorzegno CN 20 304 156302
Mombaldone AT 20 209 156511

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NW of Savona (61345 inhabitants)
49 Km W of Genova (586655 inhabitants)
57 Km S of Asti (76202 inhabitants)
61 Km E of Cuneo (56081 inhabitants)
63 Km SW of Alessandria (93943 inhabitants)
76 Km NE of Sanremo (54807 inhabitants)
84 Km SE of Moncalieri (57294 inhabitants)
91 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 		Md 2.0
M 2.1 		1992-08-04
15:56:36		 44.39 8.318 6 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 170909
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-08-04 15:56:36 ± 0.109
Latitude 44.3900 ± 0.0071
Longitude 8.3180 ± 0.0106
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 170909

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) 1156.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 156
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00032
Epicentral distance of station farthest from the epicenter (degree) 0.01085
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 170909
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:39:48

M:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 170909
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(km) Takeoff_angle Residual Weight
--.RRL.Z. 1992-08-04T15:56:59.77 10.0 undecidable manual PN 296 1.1988 0.43 0.3
--.PZZ.Z. 1992-08-04T15:56:53.72 10.0 undecidable manual PG 277 0.8769 -0.08 1.2
--.BHB.Z. 1992-08-04T15:56:53.52 10.0 undecidable manual PG 300 0.8658 -0.21 0.9
--.STV.Z. 1992-08-04T15:56:51.36 10.0 undecidable manual PG 259 0.7215 0.44 0.4
--.ENR.Z. 1992-08-04T15:56:49.41 10.0 undecidable manual PG 256 0.6549 -0.44 0.4
--.IMI.Z. 1992-08-04T15:56:47.98 10.0 undecidable manual PG 212 0.5661 -0.12 1.5
--.ROB.Z. 1992-08-04T15:56:43.27 10.0 undecidable manual PG 254 0.3219 -0.22 1.2
--.PCP.Z. 1992-08-04T15:56:41.00 10.0 undecidable manual PG 46 0.2109 -0.14 1.5
--.FIN.Z. 1992-08-04T15:56:40.80 10.0 undecidable manual PG 203 0.1887 0.18 1.4
--.CKI.Z. 1992-08-04T15:56:38.77 10.0 undecidable manual SG 316 0.0333 0.05 0.7
--.CKI.Z. 1992-08-04T15:56:37.73 10.0 undecidable manual PG 316 0.0333 0.14 1.5
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