Istituto Nazionale di Geofisica e Vulcanologia

Earthquake (quarry blast) with magnitude of ML 1.1 on date 01-07-2022 and time 14:04:42 (UTC) in region 2 km W Pallare (SV)

A magnitude ML 1.1 (quarry blast) earthquake occured in region: 2 km W Pallare (SV), on

  • 01-07-2022 14:04:42 (UTC)
  • 01-07-2022 16:04:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3350, 8.2580 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: quarry blast.

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
Pallare SV 2 923 923
Plodio SV 3 650 1573
Carcare SV 4 5587 7160
Cosseria SV 4 1105 8265
Millesimo SV 5 3383 11648
Mallare SV 6 1146 12794
Roccavignale SV 6 752 13546
Bormida SV 7 387 13933
Altare SV 7 2108 16041
Cengio SV 7 3563 19604
Cairo Montenotte SV 7 13269 32873
Osiglia SV 8 444 33317
Murialdo SV 8 841 34158
Castelnuovo di Ceva CN 10 110 34268
Montezemolo CN 10 259 34527
Saliceto CN 11 1323 35850
Rialto SV 13 564 36414
Quiliano SV 13 7232 43646
Dego SV 14 1985 45631
Camerana CN 14 631 46262
Perlo CN 14 116 46378
Orco Feglino SV 14 890 47268
Priero CN 14 529 47797
Vezzi Portio SV 14 809 48606
Calice Ligure SV 15 1730 50336
Massimino SV 15 113 50449
Sale delle Langhe CN 16 486 50935
Nucetto CN 16 430 51365
Calizzano SV 16 1475 52840
Magliolo SV 16 974 53814
Gottasecca CN 16 148 53962
Sale San Giovanni CN 16 183 54145
Vado Ligure SV 16 8336 62481
Giusvalla SV 17 441 62922
Piana Crixia SV 17 788 63710
Bagnasco CN 17 1035 64745
Spotorno SV 18 3803 68548
Tovo San Giacomo SV 18 2582 71130
Bergeggi SV 18 1129 72259
Giustenice SV 18 977 73236
Savona SV 18 61345 134581
Monesiglio CN 18 645 135226
Paroldo CN 18 211 135437
Castelletto Uzzone CN 19 331 135768
Ceva CN 19 5782 141550
Pontinvrea SV 19 847 142397
Bardineto SV 19 756 143153
Noli SV 19 2736 145889
Prunetto CN 19 451 146340
Finale Ligure SV 20 11711 158051
Albissola Marina SV 20 5487 163538
Battifollo CN 20 219 163757
Borgio Verezzi SV 20 2205 165962

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km W of Savona (61345 inhabitants)
54 Km W of Genova (586655 inhabitants)
57 Km E of Cuneo (56081 inhabitants)
63 Km S of Asti (76202 inhabitants)
68 Km NE of Sanremo (54807 inhabitants)
70 Km SW of Alessandria (93943 inhabitants)
87 Km SE of Moncalieri (57294 inhabitants)
94 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 		ML 1.1 2022-07-01
14:04:42		 44.3353 8.258 1 2023-01-31
19:03:55		 Bollettino Sismico Italiano INGV 111557061
Reviewed
Rev100 		ML 1.0 2022-07-01
14:04:41		 44.2645 8.3938 10 2022-07-01
14:23:02		 Sala Sismica INGV-Roma 106683101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-07-01 14:04:42 ± 0.4
Latitude 44.3353 ± 0.0306
Longitude 8.2580 ± 0.0327
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type quarry blast
Origin ID 111557061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3880
Semi-minor axis of confidence ellipse (meter) 1850
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 328
Circular confidence region, given by single value of horizontal uncertainty (meter) 3880.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.62
Epicentral distance of station closest to the epicenter (degree) 0.06385
Epicentral distance of station farthest from the epicenter (degree) 0.43527
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 111557061
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-11-07 15:04:42

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 106683101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-07-01 14:23:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.MGRO.HHE. 2022-07-01T14:04:51.59 0.3 undecidable manual P 228 48.3183 91 -0.4 71
GU.GBOS.HHE. 2022-07-01T14:04:50.30 0.3 undecidable manual P 253 34.8429 91 1.02 57
GU.PCP.HHZ. 2022-07-01T14:04:48.20 0.3 undecidable manual P 45 32.2455 91 -0.57 70
GU.RORO.HHZ. 2022-07-01T14:04:47.76 0.3 undecidable manual P 212 29.0487 91 -0.36 74
GU.CANO.HHZ. 2022-07-01T14:04:45.01 0.3 undecidable manual P 187 14.2746 92 -0.16 79
IV.QLNO.HHZ. 2022-07-01T14:04:44.21 0.1 positive manual P 100 7.0929 94 0.48 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CANO.HHE. ML:1.1 0.00016 0.32 AML other m 2022-07-01T14:04:48.13
GU.CANO.HHN. ML:1.1 0.0001435 1.08 AML other m 2022-07-01T14:04:49.05
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