Earthquake with magnitude of ML 1.8 on date 17-07-2020 and time 23:43:22 (Italy) in region 2 km N Rossa (VC)

A magnitude ML 1.8 earthquake occured in region: 2 km N Rossa (VC), on

  • 17-07-2020 21:43:22 (UTC)
  • 17-07-2020 23:43:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.849, 8.125 at 14 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Rossa VC 2 180 180
Boccioleto VC 2 205 385
Balmuccia VC 3 112 497
Cervatto VC 5 47 544
Rimasco VC 5 106 650
Vocca VC 5 174 824
Fobello VC 5 196 1020
Cravagliana VC 6 251 1271
Scopa VC 6 381 1652
Rima San Giuseppe VC 8 59 1711
Rimella VC 8 134 1845
Mollia VC 8 95 1940
Scopello VC 9 387 2327
Sabbia VC 9 58 2385
Carcoforo VC 9 78 2463
Campertogno VC 9 237 2700
Pila VC 9 142 2842
Piode VC 10 202 3044
Varallo VC 11 7262 10306
Rassa VC 12 71 10377
Riva Valdobbia VC 13 258 10635
Civiasco VC 14 263 10898
Alagna Valsesia VC 14 408 11306
Ceppo Morelli VB 14 321 11627
Quarona VC 15 4158 15785
Vanzone con San Carlo VB 15 407 16192
Bannio Anzino VB 15 475 16667
Massiola VB 17 127 16794
Postua VC 17 569 17363
Breia VC 17 174 17537
Calasca-Castiglione VB 18 649 18186
Cellio VC 18 810 18996
Valstrona VB 18 1253 20249
Macugnaga VB 18 557 20806
Ailoche BI 18 346 21152
Caprile BI 19 189 21341
Quarna Sotto VB 19 388 21729
Arola VB 19 243 21972
Borgosesia VC 19 12922 34894
Coggiola BI 19 1875 36769
Cesara VB 19 603 37372
Guardabosone VC 19 346 37718
Quarna Sopra VB 19 259 37977
Portula BI 20 1269 39246
Nonio VB 20 876 40122
Madonna del Sasso VB 20 399 40521

Municipalities with at least 50000 inhabitants

An earthquake occurred to
54 Km W of Varese (80799 inhabitants)
56 Km W of Gallarate (53343 inhabitants)
59 Km NW of Novara (104380 inhabitants)
62 Km W of Busto Arsizio (83106 inhabitants)
68 Km W of Legnano (60262 inhabitants)
75 Km W of Como (84495 inhabitants)
80 Km W of Rho (50434 inhabitants)
82 Km NW of Vigevano (63310 inhabitants)
91 Km W of Cinisello Balsamo (75078 inhabitants)
93 Km NE of Torino (890529 inhabitants)
93 Km W of Milano (1345851 inhabitants)
93 Km W of Sesto San Giovanni (81608 inhabitants)
94 Km W of Monza (122671 inhabitants)
100 Km NE of Moncalieri (57294 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 1.8 2020-07-17
21:43:22
45.8487 8.1252 14 2020-11-19
12:37:00
Bollettino Sismico Italiano INGV 82737221
Reviewed
Rev100
ML 1.9 2020-07-17
21:43:22
45.8435 8.1258 15 2020-07-17
21:50:54
Sala Sismica INGV-Roma 81118481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-17 21:43:22 ± 0.09
Latitude 45.8487 ± 0.0063
Longitude 8.1252 ± 0.0077
Depth (km) 14 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82737221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 743
Semi-minor axis of confidence ellipse (meter) 411
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 334
Circular confidence region, given by single value of horizontal uncertainty (meter) 740
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 25
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
Epicentral distance of station farthest from the epicenter (degree) 1.11066
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 82737221
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-08 13:34:37

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 23
Type of magnitude ML
Reference to an origin 81118481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-17 21:50:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
MN.TRI.HHZ. 2020-07-17T21:45:10.10 3.0 undecidable manual Sn 0.25 0
IV.TERO.HNZ. 2020-07-17T21:44:42.33 3.0 undecidable manual Pn 4.05 0
IV.RONT.HHZ. 2020-07-17T21:44:14.59 3.0 undecidable manual Pg 5.1 0
CH.BNALP.HHZ. 2020-07-17T21:43:54.70 0.1 undecidable manual S 11 1.0423 91 -0.63 78
ST.RONC.EHZ. 2020-07-17T21:43:54.52 3.0 undecidable manual Pn 2.19 0
GU.RSP.HHZ. 2020-07-17T21:43:51.50 0.1 undecidable manual S 221 0.9236 92 -0.33 85
IV.ZONE.HHZ. 2020-07-17T21:43:49.25 3.0 positive manual Pg 1.74 0
GU.LSD.HHZ. 2020-07-17T21:43:47.70 0.1 undecidable manual S 241 0.7941 92 -0.29 88
GU.PCP.HHZ. 2020-07-17T21:43:46.84 3.0 undecidable manual Pg 0.06 0
IV.MRGE.HHZ. 2020-07-17T21:43:46.30 0.1 undecidable manual S 264 0.7455 92 -0.26 90
CH.MUGIO.HHZ. 2020-07-17T21:43:43.10 0.1 undecidable manual S 83 0.6421 93 -0.38 91
IV.MDI.HHZ. 2020-07-17T21:43:42.89 0.1 positive manual P 94 1.1107 91 0.46 79
MN.TUE.HHZ. 2020-07-17T21:43:41.30 0.1 undecidable manual P 53 1.0504 91 -0.1 88
CH.BNALP.HHZ. 2020-07-17T21:43:41.85 0.1 undecidable manual P 11 1.0423 91 0.61 76
CH.DIX.HHZ. 2020-07-17T21:43:40.70 0.3 undecidable manual S 295 0.5495 93 -0.04 74
GU.RSP.HHZ. 2020-07-17T21:43:39.58 0.1 undecidable manual P 221 0.9236 92 0.35 86
GU.LSD.HHZ. 2020-07-17T21:43:37.54 0.1 negative manual P 241 0.7941 92 0.53 85
IV.VARE.HHZ. 2020-07-17T21:43:37.40 0.1 undecidable manual S 87 0.4497 94 -0.39 95
GU.CIRO.HHZ. 2020-07-17T21:43:37.80 0.3 undecidable manual S 238 0.4605 94 -0.32 70
GU.TRAV.HHZ. 2020-07-17T21:43:36.50 0.1 undecidable manual S 218 0.4272 94 -0.64 86
IV.MRGE.HHZ. 2020-07-17T21:43:36.42 0.1 negative manual P 264 0.7455 92 0.24 91
CH.MUGIO.HHZ. 2020-07-17T21:43:34.80 0.1 undecidable manual P 83 0.6421 93 0.39 89
CH.FUSIO.HHZ. 2020-07-17T21:43:34.88 0.1 positive manual P 31 0.7114 92 -0.71 81
CH.DIX.HHZ. 2020-07-17T21:43:33.04 0.1 negative manual P 295 0.5495 93 0.22 95
IT.VRB.HGZ. 2020-07-17T21:43:33.50 0.1 undecidable manual S 74 0.313 97 -0.27 100
GU.CIRO.HHZ. 2020-07-17T21:43:31.49 0.1 positive manual P 238 0.4605 94 0.19 98
IV.VARE.HHZ. 2020-07-17T21:43:31.54 0.1 positive manual P 87 0.4497 94 0.42 92
CH.MMK.HHZ. 2020-07-17T21:43:31.10 0.3 undecidable manual S 331 0.2311 101 -0.26 76
GU.TRAV.HHZ. 2020-07-17T21:43:30.91 0.1 positive manual P 218 0.4272 94 0.17 99
IT.VRB.HGZ. 2020-07-17T21:43:29.07 0.1 undecidable manual P 74 0.313 97 0.28 98
CH.MMK.HHZ. 2020-07-17T21:43:27.89 0.1 positive manual P 331 0.2311 101 0.49 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.MMK.HHN. ML:0 0.0003004867 0.2432 AML other m 2020-07-17T21:43:31.30
CH.MMK.HHE. ML:0 0.00026898405 0.1408 AML other m 2020-07-17T21:43:31.33
GU.TRAV.HHN. ML:0 0.0004455398 0.128 AML other m 2020-07-17T21:43:37.84
GU.CIRO.HHN. ML:0 0.0002667986 0.1408 AML other m 2020-07-17T21:43:38.20
IV.VARE.HHN. ML:0 0.00088288315 0.2048 AML other m 2020-07-17T21:43:38.19
IV.VARE.HHE. ML:0 0.00068464915 0.2432 AML other m 2020-07-17T21:43:38.08
GU.TRAV.HHE. ML:0 0.00036731405 0.0896 AML other m 2020-07-17T21:43:37.77
GU.CIRO.HHE. ML:0 0.0001674681 0.1792 AML other m 2020-07-17T21:43:38.21
CH.DIX.HHN. ML:0 0.0002997097 0.1536 AML other m 2020-07-17T21:43:41.34
CH.DIX.HHE. ML:0 0.000135567855 0.1024 AML other m 2020-07-17T21:43:41.57
CH.MUGIO.HHN. ML:0 9.08203E-5 0.1408 AML other m 2020-07-17T21:43:43.80
CH.FUSIO.HHN. ML:0 3.478258E-5 0.0896 AML other m 2020-07-17T21:43:44.17
CH.MUGIO.HHE. ML:0 0.00011298363 0.1408 AML other m 2020-07-17T21:43:44.83
CH.FUSIO.HHE. ML:0 3.405331E-5 0.128 AML other m 2020-07-17T21:43:47.01
IV.MRGE.HHN. ML:0 6.711716E-5 0.0896 AML other m 2020-07-17T21:43:48.36
IV.MRGE.HHE. ML:0 5.278009E-5 0.1408 AML other m 2020-07-17T21:43:47.98
GU.LSD.HHN. ML:0 7.169164E-5 0.3072 AML other m 2020-07-17T21:43:49.57
GU.LSD.HHE. ML:0 3.6163785E-7 0.1408 AML other m 2020-07-17T21:43:51.62
GU.RSP.HHN. ML:0 7.803905E-5 0.256 AML other m 2020-07-17T21:43:52.38
GU.RSP.HHE. ML:0 7.427444E-5 0.2432 AML other m 2020-07-17T21:43:54.52
CH.BNALP.HHE. ML:0 1.547069E-5 0.2176 AML other m 2020-07-17T21:43:56.44
CH.BNALP.HHN. ML:0 1.7135722E-5 0.3456 AML other m 2020-07-17T21:43:56.47
MN.TUE.HHN. ML:0 2.3546895E-5 0.192 AML other m 2020-07-17T21:43:58.81
IV.MDI.HHE. ML:0 6.276962E-5 0.256 AML other m 2020-07-17T21:43:59.82
MN.TUE.HHE. ML:0 1.432024E-5 0.1408 AML other m 2020-07-17T21:43:56.86
IV.MDI.HHN. ML:0 3.513724E-5 0.1536 AML other m 2020-07-17T21:43:59.58
GU.RSP.HNN. ML:2 9.231424E-5 0.4608 AML other m 2020-07-17T21:43:52.36
GU.RSP.HNE. ML:1.9 8.1290095E-5 0.2688 AML other m 2020-07-17T21:43:54.52
MN.TUE.HNE. ML:1.7 3.509689E-5 1.4976 AML other m 2020-07-17T21:44:12.10
IV.MDI.HNN. ML:2.3 0.0001304342 0.7168 AML other m 2020-07-17T21:44:19.59
GU.PCP.HHE. ML:1.5 1.7102375E-5 0.256 AML other m 2020-07-17T21:44:07.42
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