Earthquake with magnitude of M 2.4 on date 25-12-1993 and time 12:09:52 (Italy) in region 3 km S Osiglia (SV)

A magnitude M 2.4 earthquake occured in region: 3 km S Osiglia (SV), on

  • 25-12-1993 11:09:52 (UTC)
  • 25-12-1993 12:09:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2520, 8.2010 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
Osiglia SV 3 444 444
Bormida SV 4 387 831
Rialto SV 7 564 1395
Calizzano SV 7 1475 2870
Magliolo SV 8 974 3844
Murialdo SV 8 841 4685
Bardineto SV 9 756 5441
Mallare SV 9 1146 6587
Calice Ligure SV 9 1730 8317
Giustenice SV 10 977 9294
Tovo San Giacomo SV 10 2582 11876
Pallare SV 10 923 12799
Orco Feglino SV 11 890 13689
Massimino SV 12 113 13802
Plodio SV 12 650 14452
Roccavignale SV 12 752 15204
Millesimo SV 13 3383 18587
Castelnuovo di Ceva CN 13 110 18697
Perlo CN 13 116 18813
Pietra Ligure SV 13 8992 27805
Vezzi Portio SV 13 809 28614
Boissano SV 13 2492 31106
Borgio Verezzi SV 13 2205 33311
Cosseria SV 13 1105 34416
Bagnasco CN 14 1035 35451
Toirano SV 14 2644 38095
Carcare SV 14 5587 43682
Balestrino SV 14 595 44277
Priola CN 14 701 44978
Loano SV 14 11407 56385
Finale Ligure SV 15 11711 68096
Erli SV 15 245 68341
Garessio CN 15 3244 71585
Altare SV 15 2108 73693
Nucetto CN 15 430 74123
Montezemolo CN 15 259 74382
Castelvecchio di Rocca Barbena SV 15 145 74527
Cengio SV 15 3563 78090
Borghetto Santo Spirito SV 16 4948 83038
Priero CN 16 529 83567
Battifollo CN 17 219 83786
Zuccarello SV 17 309 84095
Ceriale SV 17 5561 89656
Quiliano SV 18 7232 96888
Cairo Montenotte SV 18 13269 110157
Spotorno SV 18 3803 113960
Noli SV 18 2736 116696
Saliceto CN 18 1323 118019
Castelbianco SV 18 330 118349
Lisio CN 19 201 118550
Sale delle Langhe CN 19 486 119036
Cisano sul Neva SV 19 2085 121121
Vado Ligure SV 19 8336 129457
Sale San Giovanni CN 19 183 129640
Viola CN 19 391 130031
Scagnello CN 19 194 130225
Bergeggi SV 19 1129 131354
Camerana CN 20 631 131985
Ceva CN 20 5782 137767

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km W of Savona (61345 inhabitants)
54 Km E of Cuneo (56081 inhabitants)
58 Km NE of Sanremo (54807 inhabitants)
61 Km W of Genova (586655 inhabitants)
72 Km S of Asti (76202 inhabitants)
81 Km SW of Alessandria (93943 inhabitants)
93 Km SE of Moncalieri (57294 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 2.4 1993-12-25
11:09:52
44.252 8.201 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 202679
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-12-25 11:09:52 ± 0.17
Latitude 44.2520 ± 0.0115
Longitude 8.2010 ± 0.0140
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 202679

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) 1696.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00032
Epicentral distance of station farthest from the epicenter (degree) 0.01004
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

M:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 202679
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
--.BHB.Z. 1993-12-25T11:10:21.90 10.0 undecidable manual SG 311 0.8769 -1.7 0
--.PZZ.Z. 1993-12-25T11:10:20.00 10.0 undecidable manual SG 288 0.8214 -0.84 0.1
--.STV.Z. 1993-12-25T11:10:13.87 10.0 undecidable manual SG 270 0.6216 -0.51 0.4
--.RSP.Z. 1993-12-25T11:10:13.99 10.0 undecidable manual PN 323 1.11 0.1 1.3
--.ENR.Z. 1993-12-25T11:10:11.95 10.0 undecidable manual SG 267 0.555 -0.37 0.6
--.BHB.Z. 1993-12-25T11:10:10.33 10.0 undecidable manual PG 311 0.8769 0.37 0.8
--.PZZ.Z. 1993-12-25T11:10:09.13 10.0 undecidable manual PG 288 0.8214 0.29 1.3
--.PCP.Z. 1993-12-25T11:10:06.32 10.0 undecidable manual SG 40 0.3774 -0.2 0.7
--.IMI.Z. 1993-12-25T11:10:06.87 10.0 undecidable manual SG 213 0.3996 -0.54 0.4
--.STV.Z. 1993-12-25T11:10:05.63 10.0 undecidable manual PG 270 0.6216 0.52 1
--.ENR.Z. 1993-12-25T11:10:04.21 10.0 undecidable manual PG 267 0.555 0.3 1.6
--.ROB.Z. 1993-12-25T11:10:01.97 10.0 undecidable manual SG 282 0.2331 -0.09 0.8
--.IMI.Z. 1993-12-25T11:10:00.87 10.0 undecidable manual PG 213 0.3996 -0.21 1.8
--.PCP.Z. 1993-12-25T11:10:00.28 10.0 undecidable manual PG 40 0.3774 -0.29 1.7
--.ROB.Z. 1993-12-25T11:09:58.54 10.0 undecidable manual PG 282 0.2331 0.55 1
--.FIN.Z. 1993-12-25T11:09:56.20 10.0 undecidable manual SG 172 0.0333 -0.28 0.7
--.FIN.Z. 1993-12-25T11:09:54.60 10.0 undecidable manual PG 172 0.0333 -0.06 2
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