Earthquake (quarry blast) with magnitude of ML 1.1 on date 19-04-2019 and time 12:09:38 (Italy) in region 1 km SW Plodio (SV)

A magnitude ML 1.1 (quarry blast) earthquake occured in region: 1 km SW Plodio (SV), on

  • 19-04-2019 10:09:38 (UTC)
  • 19-04-2019 12:09:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.35, 8.23 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 1 650 650
Cosseria SV 2 1105 1755
Millesimo SV 3 3383 5138
Roccavignale SV 3 752 5890
Pallare SV 4 923 6813
Cengio SV 5 3563 10376
Carcare SV 5 5587 15963
Cairo Montenotte SV 7 13269 29232
Murialdo SV 7 841 30073
Montezemolo CN 8 259 30332
Castelnuovo di Ceva CN 8 110 30442
Bormida SV 8 387 30829
Osiglia SV 8 444 31273
Mallare SV 8 1146 32419
Saliceto CN 9 1323 33742
Altare SV 9 2108 35850
Camerana CN 11 631 36481
Priero CN 11 529 37010
Perlo CN 12 116 37126
Dego SV 13 1985 39111
Sale delle Langhe CN 13 486 39597
Sale San Giovanni CN 13 183 39780
Gottasecca CN 13 148 39928
Nucetto CN 14 430 40358
Massimino SV 14 113 40471
Rialto SV 15 564 41035
Paroldo CN 16 211 41246
Quiliano SV 16 7232 48478
Monesiglio CN 16 645 49123
Calizzano SV 16 1475 50598
Bagnasco CN 16 1035 51633
Ceva CN 16 5782 57415
Piana Crixia SV 16 788 58203
Castelletto Uzzone CN 16 331 58534
Orco Feglino SV 16 890 59424
Prunetto CN 17 451 59875
Calice Ligure SV 17 1730 61605
Giusvalla SV 17 441 62046
Vezzi Portio SV 17 809 62855
Mombarcaro CN 18 268 63123
Magliolo SV 18 974 64097
Battifollo CN 18 219 64316
Torresina CN 18 52 64368
Roascio CN 18 97 64465
Vado Ligure SV 19 8336 72801
Pontinvrea SV 19 847 73648
Bardineto SV 19 756 74404
Merana AL 19 189 74593
Tovo San Giacomo SV 20 2582 77175
Scagnello CN 20 194 77369
Gorzegno CN 20 304 77673
Giustenice SV 20 977 78650

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km W of Savona (61345 inhabitants)
54 Km E of Cuneo (56081 inhabitants)
56 Km W of Genova (586655 inhabitants)
61 Km S of Asti (76202 inhabitants)
69 Km NE of Sanremo (54807 inhabitants)
70 Km SW of Alessandria (93943 inhabitants)
84 Km SE of Moncalieri (57294 inhabitants)
91 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
Rev 1000 ML 1.1 2019-04-19
10:09:38
44.35 8.23 1 2019-08-22
08:25:15
Bollettino Sismico Italiano INGV 71278061
Rev 100 ML 1.1 2019-04-19
10:09:38
44.33 8.27 10 2019-04-19
10:15:18
Sala Sismica INGV-Roma 67740071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-19 10:09:38 ± 0.12
Latitude 44.35 ± 0.01
Longitude 8.23 ± 0.01
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 71278061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 970
Semi-minor axis of confidence ellipse (meter) 560
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 331
Circular confidence region, given by single value of horizontal uncertainty (meter) 970
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 160
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 5
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.30127
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0
Num. used stations 2
Type of magnitude ML
Reference to an origin 71278061
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-08-08 15:51:34

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 67740071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-19 10:15:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RNI2.HHZ. 2019-04-19T10:11:18.65 3.0 undecidable manual Sn -0.44 0
IV.IST3.HHZ. 2019-04-19T10:11:02.36 3.0 negative manual Pn -4.01 0
IV.PARC.HHZ. 2019-04-19T10:10:29.91 3.0 undecidable manual Sg 4.9 0
ST.ZIAN.EHZ. 2019-04-19T10:10:26.63 3.0 undecidable manual Sn -5.64 0
IV.APEC.HHZ. 2019-04-19T10:10:24.25 3.0 undecidable manual Sn -4.55 0
IV.ARRO.EHZ. 2019-04-19T10:10:23.57 3.0 negative manual Pg 12.73 0
IV.ZONE.HHZ. 2019-04-19T10:10:14.18 3.0 undecidable manual Sg 5.13 0
IV.RIBO.EHZ.01 2019-04-19T10:10:14.88 3.0 undecidable manual Sn -2.34 0
IV.LAV9.HNZ. 2019-04-19T10:10:14.80 3.0 positive manual Pn -4.04 0
IV.CAVE.HHZ. 2019-04-19T10:10:06.98 3.0 undecidable manual Sg 4.16 0
SI.ROSI.HHZ. 2019-04-19T10:10:04.02 3.0 undecidable manual Pn -5.73 0
IV.BRSN.EHZ. 2019-04-19T10:10:01.99 3.0 undecidable manual Pg 6.27 0
IV.PE3.EHZ. 2019-04-19T10:09:57.36 3.0 undecidable manual Pn -3.9 0
IV.ZCCA.HHZ. 2019-04-19T10:09:57.81 3.0 undecidable manual S -1.93 0
GU.PCP.HHZ. 2019-04-19T10:09:45.03 0.3 undecidable manual P 49 0.2932 91 -0.11 71
GU.GBOS.HHZ. 2019-04-19T10:09:45.44 0.1 undecidable manual P 249 0.3013 91 0.12 95
GU.RORO.HHZ. 2019-04-19T10:09:44.34 0.3 undecidable manual P 207 0.2671 91 -0.21 70
IV.NDIM.HHZ. 2019-04-19T10:09:42.97 3.0 negative manual Pn -2.79 0
GU.CANO.HHZ. 2019-04-19T10:09:41.82 0.1 positive manual P 179 0.1439 92 0 100
IV.PII.HHZ. 2019-04-19T10:09:41.42 3.0 undecidable manual Pn -2.01 0
IV.CTL8.HNZ. 2019-04-19T10:09:41.87 3.0 positive manual Pg -0.79 0
IV.QLNO.HHZ. 2019-04-19T10:09:40.64 0.1 positive manual P 108 0.0854 93 0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.QLNO.HHN. ML:0.9 9.82E-5 0.96 AML other m 2019-04-19T10:09:42.24
IV.QLNO.HHE. ML:1.3 0.0002255 0.62 AML other m 2019-04-19T10:09:43.02
GU.CANO.HHN. ML:1.1 0.0001385 0.24 AML other m 2019-04-19T10:09:44.66
GU.CANO.HHE. ML:1.1 0.000151 0.82 AML other m 2019-04-19T10:09:45.64
IV.CTL8.HNN. ML:3.4 0.0011095 0.1 AML other m 2019-04-19T10:10:12.06
IV.CTL8.HNE. ML:3.3 0.0009365 1.1 AML other m 2019-04-19T10:10:12.32
IV.ZONE.HHE. ML:2.1 3.705E-5 0.34 AML other m 2019-04-19T10:10:16.72
IV.ZONE.HHN. ML:2.1 2.88E-5 0.9 AML other m 2019-04-19T10:10:16.87
IV.BRSN.HNN. ML:3.6 0.0005115 0.08 AML other m 2019-04-19T10:10:18.52
IV.APEC.HHN. ML:3.2 0.000129 0.08 AML other m 2019-04-19T10:10:26.93
IV.APEC.HHE. ML:3.2 0.000147 0.1 AML other m 2019-04-19T10:10:29.55
IV.BRSN.HNE. ML:3.6 0.0004395 0.42 AML other m 2019-04-19T10:10:41.11
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download