Earthquake with magnitude of ML 1.8 on date 30-11-2020 and time 09:22:06 (Italy) in region 3 km SW Roccavione (CN)

A magnitude ML 1.8 earthquake occured in region: 3 km SW Roccavione (CN), on

  • 30-11-2020 08:22:06 (UTC)
  • 30-11-2020 09:22:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.303, 7.453 at 10 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
Roccavione CN 3 2761 2761
Roaschia CN 4 107 2868
Borgo San Dalmazzo CN 4 12468 15336
Roccasparvera CN 5 741 16077
Robilante CN 5 2306 18383
Gaiola CN 5 582 18965
Valdieri CN 5 935 19900
Moiola CN 5 234 20134
Vignolo CN 7 2600 22734
Rittana CN 7 109 22843
Valloriate CN 7 109 22952
Entracque CN 8 774 23726
Boves CN 9 9835 33561
Vernante CN 9 1178 34739
Cervasca CN 9 5013 39752
Bernezzo CN 10 4104 43856
Demonte CN 12 2003 45859
Cuneo CN 13 56081 101940
Caraglio CN 13 6836 108776
Valgrana CN 13 786 109562
Peveragno CN 14 5543 115105
Limone Piemonte CN 15 1485 116590
Monterosso Grana CN 16 505 117095
Montemale di Cuneo CN 16 241 117336
Beinette CN 17 3423 120759
Chiusa di Pesio CN 18 3676 124435
Aisone CN 18 248 124683
Pradleves CN 19 250 124933
Dronero CN 20 7035 131968

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km SW of Cuneo (56081 inhabitants)
60 Km NW of Sanremo (54807 inhabitants)
80 Km S of Moncalieri (57294 inhabitants)
82 Km W of Savona (61345 inhabitants)
88 Km S of Torino (890529 inhabitants)
89 Km SW of Asti (76202 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 2020-11-30
08:22:06
44.303 7.4532 11 2021-02-26
14:56:09
Bollettino Sismico Italiano INGV 85177051
Reviewed
Rev100
ML 1.8 2020-11-30
08:22:06
44.308 7.4572 10 2020-11-30
08:33:35
Sala Sismica INGV-Roma 85103351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-30 08:22:06 ± 0.11
Latitude 44.3030 ± 0.0063
Longitude 7.4532 ± 0.0088
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85177051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 820
Semi-minor axis of confidence ellipse (meter) 488
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 231
Circular confidence region, given by single value of horizontal uncertainty (meter) 820
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.27704
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 85177051
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-28 15:20:53

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 20
Type of magnitude ML
Reference to an origin 85103351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-30 08:33:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FOSV.EHZ. 2020-11-30T08:24:03.50 3.0 undecidable manual Sn 7.47 0
IV.CRTC.HHZ. 2020-11-30T08:24:01.65 3.0 undecidable manual Sn 6.19 0
IV.CAFE.HHZ. 2020-11-30T08:23:44.47 3.0 undecidable manual Pn 0.22 0
GU.GSCL.HHZ. 2020-11-30T08:23:20.17 3.0 undecidable manual Sg 6.4 0
IV.FRON.EHZ. 2020-11-30T08:23:14.74 3.0 undecidable manual Pn 7.97 0
IV.FOSV.EHZ. 2020-11-30T08:23:13.13 3.0 undecidable manual Pn 5.21 0
IV.ARVD.HHZ. 2020-11-30T08:23:11.33 3.0 positive manual Pn 2.4 0
TV.SF01.EHZ. 2020-11-30T08:23:09.05 3.0 undecidable manual Pg 9.76 0
IV.RIBO.EHZ.01 2020-11-30T08:22:54.03 3.0 undecidable manual Pn 0.23 0
IV.FIR.HHZ. 2020-11-30T08:22:51.73 3.0 undecidable manual Pn 0.05 0
IV.CADC.HNZ. 2020-11-30T08:22:43.85 3.0 undecidable manual Pn 0.13 0
CH.MUGIO.HHZ. 2020-11-30T08:22:40.16 3.0 undecidable manual Pn -0.09 0
IV.MILN.HNZ. 2020-11-30T08:22:40.19 3.0 positive manual Pg 3.29 0
GU.PCP.HHZ. 2020-11-30T08:22:33.66 0.3 undecidable manual S 73 0.8148 50 0.2 64
GU.RRL.HHZ. 2020-11-30T08:22:32.26 0.6 undecidable manual S 323 0.777 50 -0.07 44
RD.ORIF.BHZ. 2020-11-30T08:22:31.37 0.6 undecidable manual P 299 1.277 50 1.32 25
IV.QLNO.HHZ. 2020-11-30T08:22:27.84 0.3 undecidable manual S 88 0.6385 50 -0.39 64
GU.LSD.HHZ. 2020-11-30T08:22:27.88 0.3 undecidable manual P 349 1.1781 50 -0.47 56
GU.CANO.HHZ. 2020-11-30T08:22:25.73 0.3 undecidable manual S 99 0.5693 50 -0.44 64
IV.IMI.HHZ. 2020-11-30T08:22:24.14 0.3 undecidable manual S 141 0.5036 50 -0.08 70
IV.MONC.HHZ. 2020-11-30T08:22:24.37 0.6 undecidable manual P 23 0.8409 50 1.78 21
MN.BNI.HHN. 2020-11-30T08:22:24.30 0.3 undecidable manual P 324 0.929 50 0.19 63
GU.BHB.HHE. 2020-11-30T08:22:24.88 0.6 undecidable manual S 346 0.5495 50 -0.69 39
GU.BURY.HHE. 2020-11-30T08:22:24.93 0.3 undecidable manual S 172 0.5252 50 0.06 70
GU.RORO.HHZ. 2020-11-30T08:22:23.36 0.3 undecidable manual S 113 0.4793 50 -0.13 70
GU.RSP.HHZ. 2020-11-30T08:22:22.39 0.1 undecidable manual P 351 0.8553 50 -0.45 81
GU.PCP.HHZ. 2020-11-30T08:22:22.67 0.3 undecidable manual P 73 0.8148 50 0.52 60
GU.RRL.HHZ. 2020-11-30T08:22:21.77 0.1 undecidable manual P 323 0.777 50 0.27 85
IV.QLNO.HHZ. 2020-11-30T08:22:19.44 0.3 undecidable manual P 88 0.6385 50 0.31 65
GU.PZZ.HHZ. 2020-11-30T08:22:18.36 0.3 undecidable manual S 310 0.3157 50 -0.29 70
FR.SAOF.HHZ.00 2020-11-30T08:22:18.49 0.3 undecidable manual S 167 0.3247 50 -0.44 68
GU.CANO.HHZ. 2020-11-30T08:22:18.23 0.1 undecidable manual P 99 0.5693 50 0.28 89
IV.IMI.HHZ. 2020-11-30T08:22:17.21 0.1 undecidable manual P 141 0.5036 50 0.39 88
GU.BHB.HHE. 2020-11-30T08:22:17.53 0.1 undecidable manual P 346 0.5495 50 -0.07 93
GU.BURY.HHE. 2020-11-30T08:22:17.86 0.3 undecidable manual P 172 0.5252 50 0.66 60
GU.GBOS.HHZ. 2020-11-30T08:22:16.82 0.3 undecidable manual S 102 0.2833 50 -0.88 58
GU.RORO.HHZ. 2020-11-30T08:22:16.57 0.1 undecidable manual P 113 0.4793 50 0.17 92
GU.GBOS.HHZ. 2020-11-30T08:22:13.05 0.1 undecidable manual P 102 0.2833 50 0 99
GU.PZZ.HHZ. 2020-11-30T08:22:13.62 0.1 undecidable manual P 310 0.3157 50 0.02 99
FR.SAOF.HHZ.00 2020-11-30T08:22:13.94 0.1 undecidable manual P 167 0.3247 50 0.18 95
GU.STV.HHE. 2020-11-30T08:22:11.69 0.3 undecidable manual S 238 0.1079 131 -0.54 69
GU.STV.HHE. 2020-11-30T08:22:10.05 0.1 undecidable manual P 238 0.1079 131 0.16 100
GU.ENR.HHZ. 2020-11-30T08:22:10.96 0.3 undecidable manual S 199 0.0773 141 -0.46 71
GU.ENR.HHZ. 2020-11-30T08:22:09.60 0.1 undecidable manual P 199 0.0773 141 0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.ENR.HHE. ML:2.8 0.009955 1.92 AML other m 2020-11-30T08:22:10.02
GU.ENR.HHN. ML:2.6 0.005785 0.06 AML other m 2020-11-30T08:22:11.06
GU.GBOS.HHE. ML:1.7 0.0002215 0.14 AML other m 2020-11-30T08:22:16.90
GU.GBOS.HHN. ML:1.7 0.000247 0.2 AML other m 2020-11-30T08:22:17.36
GU.PZZ.HHE. ML:2 0.000353 0.32 AML other m 2020-11-30T08:22:18.66
FR.SAOF.HHN.00 ML:1.3 7.995E-5 0.58 AML other m 2020-11-30T08:22:19.35
FR.SAOF.HHE.00 ML:1.5 0.000132 1.58 AML other m 2020-11-30T08:22:19.06
GU.PZZ.HHN. ML:2 0.000395 0.34 AML other m 2020-11-30T08:22:19.12
GU.RORO.HHE. ML:2.2 0.0003615 0.42 AML other m 2020-11-30T08:22:21.78
GU.RORO.HHN. ML:2 0.0002195 0.22 AML other m 2020-11-30T08:22:23.96
IV.IMI.HHN. ML:1.7 0.0001069 0.54 AML other m 2020-11-30T08:22:24.87
GU.CANO.HHN. ML:2 0.0001685 1.72 AML other m 2020-11-30T08:22:25.94
IV.IMI.HHE. ML:1.6 7.835E-5 0.44 AML other m 2020-11-30T08:22:26.10
GU.CANO.HHE. ML:1.9 0.00016 0.86 AML other m 2020-11-30T08:22:27.50
IV.QLNO.HHN. ML:1.6 7.205E-5 0.18 AML other m 2020-11-30T08:22:28.14
IV.QLNO.HHE. ML:1.6 6.54E-5 0.22 AML other m 2020-11-30T08:22:29.03
RD.ORIF.BHN. ML:1.4 1.71E-5 0.44 AML other m 2020-11-30T08:22:32.48
RD.ORIF.BHE. ML:1.6 2.255E-5 0.44 AML other m 2020-11-30T08:22:53.52
IV.FIR.HHN. ML:3.5 0.0003835 0.16 AML other m 2020-11-30T08:23:27.81
IV.FIR.HHE. ML:3.7 0.0005655 0.26 AML other m 2020-11-30T08:23:27.74
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