Earthquake (quarry blast) with magnitude of ML 1.0 on date 08-01-2020 and time 11:52:03 (Italy) in region 3 km S Plodio (SV)

A magnitude ML 1.0 (quarry blast) earthquake occured in region: 3 km S Plodio (SV), on

  • 08-01-2020 10:52:03 (UTC)
  • 08-01-2020 11:52:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.3330, 8.2360 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Plodio SV 3 650 650
Pallare SV 3 923 1573
Cosseria SV 4 1105 2678
Millesimo SV 4 3383 6061
Roccavignale SV 5 752 6813
Carcare SV 5 5587 12400
Bormida SV 6 387 12787
Murialdo SV 6 841 13628
Osiglia SV 6 444 14072
Cengio SV 7 3563 17635
Mallare SV 7 1146 18781
Cairo Montenotte SV 8 13269 32050
Castelnuovo di Ceva CN 9 110 32160
Altare SV 9 2108 34268
Montezemolo CN 9 259 34527
Saliceto CN 11 1323 35850
Perlo CN 12 116 35966
Priero CN 12 529 36495
Camerana CN 13 631 37126
Rialto SV 13 564 37690
Massimino SV 14 113 37803
Sale delle Langhe CN 14 486 38289
Nucetto CN 14 430 38719
Orco Feglino SV 14 890 39609
Dego SV 14 1985 41594
Calizzano SV 14 1475 43069
Sale San Giovanni CN 15 183 43252
Quiliano SV 15 7232 50484
Calice Ligure SV 15 1730 52214
Vezzi Portio SV 15 809 53023
Gottasecca CN 15 148 53171
Magliolo SV 16 974 54145
Bagnasco CN 16 1035 55180
Ceva CN 17 5782 60962
Paroldo CN 17 211 61173
Monesiglio CN 18 645 61818
Vado Ligure SV 18 8336 70154
Tovo San Giacomo SV 18 2582 72736
Bardineto SV 18 756 73492
Giustenice SV 18 977 74469
Piana Crixia SV 18 788 75257
Battifollo CN 18 219 75476
Castelletto Uzzone CN 18 331 75807
Giusvalla SV 18 441 76248
Spotorno SV 19 3803 80051
Prunetto CN 19 451 80502
Bergeggi SV 19 1129 81631
Mombarcaro CN 19 268 81899
Roascio CN 19 97 81996
Torresina CN 19 52 82048
Priola CN 19 701 82749
Scagnello CN 20 194 82943
Savona SV 20 61345 144288
Borgio Verezzi SV 20 2205 146493

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km W of Savona (61345 inhabitants)
55 Km E of Cuneo (56081 inhabitants)
56 Km W of Genova (586655 inhabitants)
63 Km S of Asti (76202 inhabitants)
67 Km NE of Sanremo (54807 inhabitants)
71 Km SW of Alessandria (93943 inhabitants)
86 Km SE of Moncalieri (57294 inhabitants)
93 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 1.0 2020-01-08
10:52:03
44.3332 8.2358 1 2020-07-18
21:08:22
Bollettino Sismico Italiano INGV 76838431
Reviewed
Rev100
ML 1.9 2020-01-08
10:51:58
44.3583 8.7433 10 2020-01-08
11:02:12
Sala Sismica INGV-Roma 75382131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-08 10:52:03 ± 0.22
Latitude 44.3332 ± 0.0144
Longitude 8.2358 ± 0.0113
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 76838431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1680
Semi-minor axis of confidence ellipse (meter) 770
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 344
Circular confidence region, given by single value of horizontal uncertainty (meter) 1680.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 204
Number of associated phases, regardless of their use for origin computation 4
Number of defining phases 4
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.07914
Epicentral distance of station farthest from the epicenter (degree) 0.29768
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 75382131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-08 11:02:12

ML:1.0

Field Value
Value 1.0
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 76838431
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-04 14:30:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GBOS.HHZ. 2020-01-08T10:52:10.22 0.3 undecidable manual P 252 33.0447 91 0.08 71
GU.RORO.HHE. 2020-01-08T10:52:08.96 0.1 undecidable manual P 209 27.9498 91 -0.17 94
GU.CANO.HHZ. 2020-01-08T10:52:06.44 0.1 positive manual P 180 13.9749 92 0.13 97
IV.QLNO.HHZ. 2020-01-08T10:52:05.26 0.1 positive manual P 96 8.7801 93 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.RNCA.HHN. ML:0.8 0.000013357123999999999 0.0576 AML other m 2020-01-08T10:52:06.87
IV.QLNO.HHE. ML:1.9 0.00021700930000000002 0.6016 AML other m 2020-01-08T10:52:07.22
IV.QLNO.HHN. ML:2.1 0.00034344005 0.6016 AML other m 2020-01-08T10:52:07.56
GU.CANO.HHE. ML:1.2 0.00021511375 0.4032 AML other m 2020-01-08T10:52:09.83
GU.CANO.HHN. ML:1.2 0.00021749754999999998 0.3264 AML other m 2020-01-08T10:52:10.12
GU.PCP.HHN. ML:0.4 0.000010222834499999999 0.16 AML other m 2020-01-08T10:52:14.55
GU.RNCA.HHE. ML:1.2 0.00003260626 0.064 AML other m 2020-01-08T10:52:15.28
GU.PCP.HHE. ML:0.5 0.000014333768 0.2624 AML other m 2020-01-08T10:52:16.48
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