Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 17-06-2020 and time 09:46:08 (UTC) in region 2 km E Malvicino (AL)

A magnitude ML 1.4 earthquake occured in region: 2 km E Malvicino (AL), on

  • 17-06-2020 09:46:08 (UTC)
  • 17-06-2020 11:46:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5660, 8.4370 at 8 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.

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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
Malvicino AL 2 85 85
Ponzone AL 3 1051 1136
Cartosio AL 3 747 1883
Montechiaro d'Acqui AL 6 560 2443
Pareto AL 7 554 2997
Morbello AL 7 402 3399
Cavatore AL 7 291 3690
Castelletto d'Erro AL 7 148 3838
Grognardo AL 8 259 4097
Spigno Monferrato AL 8 1050 5147
Mombaldone AT 9 209 5356
Mioglia SV 9 526 5882
Melazzo AL 9 1325 7207
Ponti AL 9 606 7813
Denice AL 9 176 7989
Sassello SV 11 1777 9766
Cassinelle AL 11 914 10680
Terzo AL 12 923 11603
Visone AL 12 1194 12797
Bistagno AL 12 1887 14684
Merana AL 12 189 14873
Prasco AL 13 521 15394
Monastero Bormida AT 13 931 16325
Acqui Terme AL 13 19896 36221
Giusvalla SV 13 441 36662
Pontinvrea SV 13 847 37509
Roccaverano AT 13 399 37908
Piana Crixia SV 14 788 38696
Sessame AT 14 271 38967
Serole AT 14 123 39090
Morsasco AL 14 679 39769
Cremolino AL 14 1086 40855
Molare AL 14 2181 43036
Urbe SV 15 700 43736
Olmo Gentile AT 15 80 43816
Montabone AT 15 333 44149
Tiglieto GE 15 546 44695
Bubbio AT 16 893 45588
Trisobbio AL 16 655 46243
San Giorgio Scarampi AT 16 122 46365
Dego SV 16 1985 48350
Strevi AL 16 2019 50369
Orsara Bormida AL 17 424 50793
Castel Rocchero AT 17 395 51188
Rocchetta Palafea AT 17 338 51526
Cassinasco AT 17 611 52137
Castel Boglione AT 18 609 52746
Cessole AT 18 403 53149
Alice Bel Colle AL 18 766 53915
Montaldo Bormida AL 18 664 54579
Perletto CN 18 292 54871
Loazzolo AT 18 359 55230
Vesime AT 18 622 55852
Carpeneto AL 18 977 56829
Ovada AL 19 11477 68306
Rivalta Bormida AL 19 1446 69752
Rossiglione GE 19 2779 72531
Ricaldone AL 19 684 73215
Belforte Monferrato AL 19 515 73730
Stella SV 19 3009 76739
Pezzolo Valle Uzzone CN 19 344 77083
Cortemilia CN 19 2331 79414

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km N of Savona (61345 inhabitants)
41 Km SW of Alessandria (93943 inhabitants)
41 Km SE of Asti (76202 inhabitants)
43 Km W of Genova (586655 inhabitants)
73 Km E of Cuneo (56081 inhabitants)
77 Km SE of Moncalieri (57294 inhabitants)
82 Km SE of Torino (890529 inhabitants)
90 Km SW of Pavia (72576 inhabitants)
90 Km SW of Vigevano (63310 inhabitants)
98 Km NE of Sanremo (54807 inhabitants)
99 Km S of Novara (104380 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 2020-06-17
09:46:08		 44.5662 8.4372 9 2020-11-19
12:36:49		 Bollettino Sismico Italiano INGV 80308561
Reviewed
Rev100 		ML 1.6 2020-06-17
09:46:08		 44.5563 8.4823 11 2020-06-17
09:56:01		 Sala Sismica INGV-Roma 80260031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-17 09:46:08 ± 0.08
Latitude 44.5662 ± 0.0036
Longitude 8.4372 ± 0.0101
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 80308561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 769
Semi-minor axis of confidence ellipse (meter) 421
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 81
Circular confidence region, given by single value of horizontal uncertainty (meter) 770.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.53600
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 80308561
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-19 08:10:28

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 80260031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-17 09:56:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IST3.HHZ. 2020-06-17T09:48:18.78 3.0 positive manual Pg 28.450001 0
IV.SPS2.HHZ. 2020-06-17T09:48:13.84 3.0 positive manual Pg 20.83 0
MN.VAE.HHZ. 2020-06-17T09:48:03.10 3.0 undecidable manual Pn 2.61 0
OT.OT05.EHZ. 2020-06-17T09:47:49.71 3.0 positive manual Pg 23.450001 0
IV.BARO.EHZ. 2020-06-17T09:47:47.30 3.0 undecidable manual Sg 16.379999 0
IV.PZUN.HHZ. 2020-06-17T09:47:41.94 3.0 positive manual Pn 5.73 0
CR.BRJN.HHZ. 2020-06-17T09:47:40.18 3.0 undecidable manual Sn 3.24 0
IV.ROSPO.HHZ. 2020-06-17T09:47:35.83 3.0 undecidable manual Pg 19.57 0
IV.PESA.HHZ. 2020-06-17T09:47:33.71 3.0 undecidable manual Sg 11.24 0
IV.MCRV.HHZ. 2020-06-17T09:47:33.13 3.0 undecidable manual Pn 3.24 0
TV.SF04.EHZ. 2020-06-17T09:47:14.67 3.0 undecidable manual Sn -1.21 0
IV.CSP1.EHZ. 2020-06-17T09:47:08.22 3.0 undecidable manual Pg 12.94 0
IV.FOSV.EHZ. 2020-06-17T09:47:04.11 3.0 undecidable manual Pg 14.06 0
IV.SENI.HNZ. 2020-06-17T09:47:02.92 3.0 negative manual Pg 10.43 0
IV.CRND.HNZ. 2020-06-17T09:46:51.17 3.0 undecidable manual Pg 7.57 0
IV.BRSN.EHZ. 2020-06-17T09:46:46.35 3.0 positive manual Pg 6.68 0
IV.NDIM.HHZ. 2020-06-17T09:46:28.62 3.0 undecidable manual P 0.14 0
GU.GBOS.HHZ. 2020-06-17T09:46:27.00 0.3 undecidable manual S 233 59.496 50 0.06 69
GU.RORO.HHZ. 2020-06-17T09:46:26.25 0.6 undecidable manual S 210 58.2972 50 -0.39 43
GU.CANO.HHZ. 2020-06-17T09:46:21.86 0.3 undecidable manual S 202 42.8238 50 -0.64 61
GU.ROTM.HHZ. 2020-06-17T09:46:19.69 0.1 undecidable manual S 348 32.1456 105 0.14 95
GU.GBOS.HHZ. 2020-06-17T09:46:19.25 0.1 undecidable manual P 233 59.496 50 0.3 87
IV.QLNO.HHZ. 2020-06-17T09:46:18.08 0.1 undecidable manual S 195 27.75 107 -0.03 98
GU.RORO.HHZ. 2020-06-17T09:46:18.87 0.1 undecidable manual P 210 58.2972 50 0.1 91
GU.CANO.HHZ. 2020-06-17T09:46:16.36 0.1 undecidable manual P 202 42.8238 50 -0.03 95
GU.RNCA.HHZ. 2020-06-17T09:46:16.49 0.3 undecidable manual P 104 42.0246 50 0.23 69
GU.ROTM.HHZ. 2020-06-17T09:46:14.80 0.1 undecidable manual P 348 32.1456 105 0.12 95
IV.QLNO.HHZ. 2020-06-17T09:46:14.08 0.1 undecidable manual P 195 27.75 107 0.23 94
IT.ACQ.HGZ. 2020-06-17T09:46:12.98 0.1 undecidable manual S 9 13.0758 123 -0.45 92
GU.PCP.HHZ. 2020-06-17T09:46:12.22 0.1 undecidable manual S 108 8.9799 133 -0.08 100
IT.ACQ.HGZ. 2020-06-17T09:46:11.09 0.1 positive manual P 9 13.0758 123 -0.05 100
GU.PCP.HHZ. 2020-06-17T09:46:10.66 0.1 negative manual P 108 8.9799 133 0.17 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PCP.HHE. ML:1.1 0.00019283715 0.4032 AML other m 2020-06-17T09:46:12.28
GU.PCP.HHN. ML:1.0 0.0001615 0.3 AML other m 2020-06-17T09:46:12.25
IV.QLNO.HHN. ML:1.5 0.0001525 0.16 AML other m 2020-06-17T09:46:18.46
IV.QLNO.HHE. ML:1.4 0.0001265 0.16 AML other m 2020-06-17T09:46:18.54
GU.ROTM.HHN. ML:2.1 0.0005475 0.14 AML other m 2020-06-17T09:46:19.78
GU.ROTM.HHE. ML:1.9 0.0003885 0.38 AML other m 2020-06-17T09:46:19.79
GU.CANO.HHE. ML:1.5 0.0001107994 0.96 AML other m 2020-06-17T09:46:22.82
GU.CANO.HHN. ML:1.3 0.00006868798500000001 0.4832 AML other m 2020-06-17T09:46:23.16
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