Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.5 on date 09-06-1990 and time 08:54:23 (Italy) in region Costa Ligure centro occidentale (Savona)

A magnitude Md 2.5 earthquake occured in region: Costa Ligure centro occidentale (Savona), on

  • 09-06-1990 06:54:23 (UTC)
  • 09-06-1990 08:54:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2060, 8.4800 at 14 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
Noli SV 5 2736 2736
Spotorno SV 5 3803 6539
Bergeggi SV 6 1129 7668
Vado Ligure SV 8 8336 16004
Vezzi Portio SV 10 809 16813
Quiliano SV 11 7232 24045
Savona SV 11 61345 85390
Finale Ligure SV 12 11711 97101
Orco Feglino SV 12 890 97991
Albissola Marina SV 14 5487 103478
Calice Ligure SV 15 1730 105208
Borgio Verezzi SV 15 2205 107413
Albisola Superiore SV 15 10163 117576
Celle Ligure SV 16 5237 122813
Rialto SV 16 564 123377
Pietra Ligure SV 17 8992 132369
Tovo San Giacomo SV 17 2582 134951
Mallare SV 17 1146 136097
Altare SV 18 2108 138205
Magliolo SV 18 974 139179
Varazze SV 19 13251 152430
Giustenice SV 19 977 153407
Loano SV 19 11407 164814

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km S of Savona (61345 inhabitants)
43 Km SW of Genova (586655 inhabitants)
70 Km NE of Sanremo (54807 inhabitants)
77 Km E of Cuneo (56081 inhabitants)
80 Km S of Alessandria (93943 inhabitants)
80 Km S of Asti (76202 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
M 2.9 		1990-06-09
06:54:23		 44.206 8.48 15 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 120759
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-06-09 06:54:23 ± 0.191
Latitude 44.2060 ± 0.0120
Longitude 8.4800 ± 0.0138
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 120759

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) 1730.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 140
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00170
Epicentral distance of station farthest from the epicenter (degree) 0.01530
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 120759
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:52:07

M:2.9

Field Value
Value 2.9
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 120759
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
--.LSD.Z. 1990-06-09T06:55:09.71 10.0 undecidable manual SN 323 1.554 -0.7 0.3
--.BDI.Z. 1990-06-09T06:55:09.65 10.0 undecidable manual SN 94 1.5207 0.14 0.6
--.ORX.Z. 1990-06-09T06:55:08.48 10.0 undecidable manual SN 346 1.4652 0.34 0.6
--.RRL.Z. 1990-06-09T06:55:05.69 10.0 undecidable manual SN 300 1.3875 -0.89 0.2
--.RSP.Z. 1990-06-09T06:55:02.78 10.0 undecidable manual SN 317 1.2765 -0.97 0.2
--.DOI.Z. 1990-06-09T06:54:55.90 10.0 undecidable manual SN 288 0.9213 -0.27 0.7
--.PZZ.Z. 1990-06-09T06:54:55.70 10.0 undecidable manual SN! 287 1.0212 -2.01 0
--.BOB.Z. 1990-06-09T06:54:53.17 10.0 undecidable manual SG 50 0.8769 -0.95 0.2
--.BNI.Z. 1990-06-09T06:54:52.43 10.0 undecidable manual PN! 303 1.5318 2.19 0
--.SBF.Z. 1990-06-09T06:54:52.40 10.0 undecidable manual SG 245 0.8214 0.33 0.7
--.LMR.Z. 1990-06-09T06:54:51.40 10.0 undecidable manual PN 238 1.665 -0.67 0.8
--.STV.Z. 1990-06-09T06:54:51.21 10.0 undecidable manual SG 273 0.8214 -0.84 0.4
--.LSD.Z. 1990-06-09T06:54:50.70 10.0 undecidable manual PN 323 1.554 0.06 1.6
--.PGF.Z. 1990-06-09T06:54:50.60 10.0 undecidable manual PN! 166 1.6983 -2.45 0
--.BDI.Z. 1990-06-09T06:54:50.78 10.0 undecidable manual PN 94 1.5207 0.66 1.1
--.ORX.Z. 1990-06-09T06:54:50.60 10.0 undecidable manual PN 346 1.4652 1.27 0.3
--.ENR.Z. 1990-06-09T06:54:49.41 10.0 undecidable manual SG 271 0.7548 -0.53 0.6
--.RRL.Z. 1990-06-09T06:54:49.78 10.0 undecidable manual PN 300 1.3875 1.35 0.2
--.FRF.Z. 1990-06-09T06:54:48.20 10.0 undecidable manual PN 244 1.4652 -1.15 0.3
--.RSP.Z. 1990-06-09T06:54:47.93 10.0 undecidable manual PN 317 1.2765 1.14 0.4
--.PZZ.Z. 1990-06-09T06:54:43.22 10.0 undecidable manual PN 287 1.0212 -0.08 2
--.DOI.Z. 1990-06-09T06:54:41.91 10.0 undecidable manual PN 288 0.9213 -0.04 2.1
--.IMI.Z. 1990-06-09T06:54:41.68 10.0 undecidable manual SG 234 0.5106 -0.45 0.7
--.STV.Z. 1990-06-09T06:54:40.55 10.0 undecidable manual PG 273 0.8214 0.51 1.4
--.BOB.Z. 1990-06-09T06:54:40.94 10.0 undecidable manual PG 50 0.8769 -0.29 1.8
--.SBF.Z. 1990-06-09T06:54:40.00 10.0 undecidable manual PG 245 0.8214 -0.05 2.1
--.ENR.Z. 1990-06-09T06:54:39.20 10.0 undecidable manual PG 271 0.7548 0.2 1.9
--.ROB.Z. 1990-06-09T06:54:39.83 10.0 undecidable manual SG 282 0.444 -0.07 0.8
--.PCP.Z. 1990-06-09T06:54:35.41 10.0 undecidable manual SG 7 0.333 -1.1 0.2
--.CKI.Z. 1990-06-09T06:54:34.42 10.0 undecidable manual SG 325 0.2553 0.42 0.6
--.IMI.Z. 1990-06-09T06:54:34.18 10.0 undecidable manual PG 234 0.5106 -0.13 2
--.ROB.Z. 1990-06-09T06:54:33.60 10.0 undecidable manual PG 282 0.444 0.04 2.1
--.FIN.Z. 1990-06-09T06:54:32.14 10.0 undecidable manual SG 270 0.1887 0.04 0.8
--.PCP.Z. 1990-06-09T06:54:30.60 10.0 undecidable manual PG 7 0.333 -0.46 1.5
--.CKI.Z. 1990-06-09T06:54:29.68 10.0 negative manual PG 325 0.2553 0.06 4.1
--.FIN.Z. 1990-06-09T06:54:28.86 10.0 undecidable manual PG 270 0.1887 0.34 1.7
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