Earthquake (quarry blast) with magnitude of ML 1.4 on date 04-03-2020 and time 10:38:31 (UTC) in region 1 km SE Millesimo (SV)

A magnitude ML 1.4 (quarry blast) earthquake occured in region: 1 km SE Millesimo (SV), on

  • 04-03-2020 10:38:31 (UTC)
  • 04-03-2020 11:38:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.3580, 8.2120 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
Millesimo SV 1 3383 3383
Roccavignale SV 2 752 4135
Cosseria SV 2 1105 5240
Plodio SV 3 650 5890
Cengio SV 3 3563 9453
Murialdo SV 6 841 10294
Pallare SV 6 923 11217
Montezemolo CN 6 259 11476
Carcare SV 6 5587 17063
Castelnuovo di Ceva CN 7 110 17173
Cairo Montenotte SV 7 13269 30442
Saliceto CN 7 1323 31765
Osiglia SV 9 444 32209
Bormida SV 9 387 32596
Camerana CN 9 631 33227
Priero CN 10 529 33756
Mallare SV 10 1146 34902
Perlo CN 11 116 35018
Altare SV 11 2108 37126
Sale delle Langhe CN 11 486 37612
Sale San Giovanni CN 12 183 37795
Gottasecca CN 12 148 37943
Nucetto CN 12 430 38373
Massimino SV 13 113 38486
Dego SV 13 1985 40471
Paroldo CN 14 211 40682
Monesiglio CN 14 645 41327
Ceva CN 14 5782 47109
Bagnasco CN 15 1035 48144
Castelletto Uzzone CN 15 331 48475
Calizzano SV 16 1475 49950
Prunetto CN 16 451 50401
Mombarcaro CN 16 268 50669
Rialto SV 16 564 51233
Piana Crixia SV 16 788 52021
Torresina CN 16 52 52073
Roascio CN 16 97 52170
Battifollo CN 17 219 52389
Quiliano SV 17 7232 59621
Giusvalla SV 18 441 60062
Orco Feglino SV 18 890 60952
Scagnello CN 18 194 61146
Calice Ligure SV 18 1730 62876
Gorzegno CN 18 304 63180
Igliano CN 19 74 63254
Vezzi Portio SV 19 809 64063
Magliolo SV 19 974 65037
San Benedetto Belbo CN 19 179 65216
Merana AL 19 189 65405
Mombasiglio CN 19 609 66014
Lisio CN 19 201 66215
Priola CN 19 701 66916
Bardineto SV 20 756 67672
Castellino Tanaro CN 20 312 67984

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km W of Savona (61345 inhabitants)
53 Km E of Cuneo (56081 inhabitants)
58 Km W of Genova (586655 inhabitants)
60 Km S of Asti (76202 inhabitants)
69 Km NE of Sanremo (54807 inhabitants)
70 Km SW of Alessandria (93943 inhabitants)
83 Km SE of Moncalieri (57294 inhabitants)
90 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 1.4 2020-03-04
10:38:31
44.358 8.2123 1 2020-07-18
21:08:40
Bollettino Sismico Italiano INGV 80117891
Reviewed
Rev100
ML 1.4 2020-03-04
10:38:31
44.3302 8.2645 10 2020-03-04
10:49:42
Sala Sismica INGV-Roma 77021311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-04 10:38:31 ± 0.39
Latitude 44.3580 ± 0.0252
Longitude 8.2123 ± 0.0176
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 80117891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2760
Semi-minor axis of confidence ellipse (meter) 1380
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 358
Circular confidence region, given by single value of horizontal uncertainty (meter) 2760.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 212
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.58186
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 77021311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-04 10:49:42

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 80117891
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-12 16:29:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ZONE.HHZ. 2020-03-04T10:39:07.39 3.0 undecidable manual Sg 3.65 0
IV.ROSPO.HHZ. 2020-03-04T10:39:04.78 3.0 undecidable manual Sn -3.91 0
IV.VENL.HNZ. 2020-03-04T10:38:45.86 3.0 undecidable manual Sn -1.68 0
CH.BERNI.HHZ. 2020-03-04T10:38:45.24 3.0 negative manual Pg 5.42 0
GU.ENR.HHZ. 2020-03-04T10:38:43.49 0.3 undecidable manual P 257 64.5909 50 -0.43 63
IV.IMI.HHZ. 2020-03-04T10:38:41.97 0.3 undecidable manual P 207 55.7997 91 -0.4 64
IV.MCI.EHZ. 2020-03-04T10:38:38.40 3.0 positive manual Pg 4.81 0
GU.GBOS.HHZ. 2020-03-04T10:38:38.25 0.3 undecidable manual P 247 32.2455 91 0.59 63
GU.RORO.HHZ. 2020-03-04T10:38:37.19 0.3 undecidable manual P 203 29.6481 91 0.06 72
IV.ROSPO.HHZ. 2020-03-04T10:38:37.34 3.0 positive manual Pg 2.98 0
GU.CANO.HHZ. 2020-03-04T10:38:34.64 0.1 undecidable manual P 173 16.7721 92 0.08 98
IV.QLNO.HHZ. 2020-03-04T10:38:33.48 0.1 undecidable manual P 109 11.2776 93 0.03 100
IV.MNTV.HNZ. 2020-03-04T10:38:25.35 3.0 undecidable manual Pg 4.32 0
IV.PE3.EHZ. 2020-03-04T10:38:07.69 3.0 undecidable manual S -0.16 0
IV.COR1.EHZ. 2020-03-04T10:38:05.35 3.0 undecidable manual P -2.17 0
IV.BRSN.HNZ. 2020-03-04T10:38:03.68 3.0 positive manual P -0.64 0
IV.OSSC.HNZ. 2020-03-04T10:37:59.99 3.0 undecidable manual P -1.19 0
IV.APEC.HNZ. 2020-03-04T10:37:58.02 3.0 undecidable manual P -1.23 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.QLNO.HHE. ML:1.2 0.00029400000000000004 0.96 AML other m 2020-03-04T10:38:35.96
IV.QLNO.HHN. ML:1.2 0.00023999999999999998 0.66 AML other m 2020-03-04T10:38:35.55
GU.CANO.HHN. ML:1.4 0.00023500000000000002 0.42 AML other m 2020-03-04T10:38:38.42
GU.CANO.HHE. ML:1.5 0.00029749999999999997 0.98 AML other m 2020-03-04T10:38:39.13
GU.ENR.HHE. ML:1.4 0.00004295 0.42 AML other m 2020-03-04T10:38:58.92
GU.ENR.HHN. ML:1.5 0.00006665000000000001 0.42 AML other m 2020-03-04T10:39:27.29
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
Waveforms Seismic signals in miniseed + resp format not available