Earthquake with magnitude of ML 1.4 on date 01-02-2021 and time 00:49:04 (Italy) in region 4 km W Coazze (TO)

A magnitude ML 1.4 earthquake occured in region: 4 km W Coazze (TO), on

  • 31-01-2021 23:49:04 (UTC)
  • 01-02-2021 00:49:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.0520, 7.2490 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Coazze TO 4 3287 3287
Vaie TO 6 1458 4745
Sant'Antonino di Susa TO 7 4306 9051
Villar Focchiardo TO 7 2042 11093
Valgioie TO 8 951 12044
Borgone Susa TO 8 2229 14273
Chiusa di San Michele TO 8 1647 15920
Giaveno TO 8 16455 32375
Condove TO 9 4638 37013
San Didero TO 10 551 37564
Caprie TO 10 2086 39650
San Giorio di Susa TO 10 1024 40674
Sant'Ambrogio di Torino TO 10 4755 45429
Roure TO 11 848 46277
Bruzolo TO 11 1524 47801
Perosa Argentina TO 11 3285 51086
Inverso Pinasca TO 12 730 51816
Pomaretto TO 12 1009 52825
Avigliana TO 12 12516 65341
Pinasca TO 12 3051 68392
Bussoleno TO 12 6094 74486
Chianocco TO 12 1675 76161
Cumiana TO 13 7826 83987
Mattie TO 13 687 84674
Villar Dora TO 13 2932 87606
Trana TO 13 3877 91483
Almese TO 14 6401 97884
Cantalupa TO 14 2553 100437
Reano TO 14 1818 102255
Rubiana TO 14 2400 104655
Villar Perosa TO 15 4092 108747
Buttigliera Alta TO 15 6419 115166
Frossasco TO 15 2864 118030
Fenestrelle TO 16 544 118574
Roletto TO 16 2009 120583
Meana di Susa TO 16 826 121409
Sangano TO 16 3707 125116
Perrero TO 16 659 125775
Pramollo TO 17 258 126033
San Pietro Val Lemina TO 17 1448 127481
San Germano Chisone TO 17 1854 129335
Rosta TO 17 4903 134238
Usseaux TO 17 186 134424
Villarbasse TO 17 3509 137933
Bruino TO 18 8639 146572
Mompantero TO 18 659 147231
Massello TO 18 51 147282
Piossasco TO 18 18589 165871
Porte TO 18 1083 166954
Susa TO 18 6466 173420
Pinerolo TO 19 35808 209228
Caselette TO 20 3060 212288
Gravere TO 20 692 212980
Salza di Pinerolo TO 20 75 213055
Val della Torre TO 20 3869 216924
Lemie TO 20 179 217103

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km W of Torino (890529 inhabitants)
35 Km W of Moncalieri (57294 inhabitants)
77 Km NW of Cuneo (56081 inhabitants)
77 Km W 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 1.4 2021-01-31
23:49:04
45.0523 7.2487 8 2021-07-12
16:55:04
Bollettino Sismico Italiano INGV 88589771
Reviewed
Rev100
ML 1.4 2021-01-31
23:49:04
45.0552 7.2447 8 2021-02-01
00:08:49
Sala Sismica INGV-Roma 86746481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-31 23:49:04 ± 0.3
Latitude 45.0523 ± 0.0117
Longitude 7.2487 ± 0.0165
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 88589771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1230
Semi-minor axis of confidence ellipse (meter) 1198
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 149
Circular confidence region, given by single value of horizontal uncertainty (meter) 1230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.47
Epicentral distance of station closest to the epicenter (degree) 0.21674
Epicentral distance of station farthest from the epicenter (degree) 1.03332
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 86746481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-01 00:08:49

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 88589771
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-29 14:50:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.BLANC.HHE. 2021-01-31T23:49:31.78 0.6 undecidable manual S 345 91.242 50 -0.21 43
IV.MRGE.HHZ. 2021-01-31T23:49:28.26 0.6 undecidable manual S 350 80.8635 50 -0.98 34
CH.DIX.HHE. 2021-01-31T23:49:24.00 0.3 undecidable manual P 6 114.6963 50 -0.01 64
IV.MONC.HHZ. 2021-01-31T23:49:22.92 0.6 undecidable manual S 87 53.2023 50 1.07 34
GU.BLANC.HHE. 2021-01-31T23:49:20.98 0.3 undecidable manual P 345 91.242 50 0.58 58
GU.STV.HHN. 2021-01-31T23:49:19.00 0.3 undecidable manual P 176 89.7435 50 -1.17 45
MN.BNI.HHZ. 2021-01-31T23:49:19.37 0.6 undecidable manual S 270 44.7219 50 -0.21 47
IV.MRGE.HHZ. 2021-01-31T23:49:18.84 0.1 undecidable manual P 350 80.8635 50 0.04 90
GU.RRL.HHE. 2021-01-31T23:49:17.92 0.6 undecidable manual S 248 38.8278 50 -0.08 48
GU.CIRO.HHZ. 2021-01-31T23:49:16.37 0.3 undecidable manual P 22 65.8896 50 -0.12 69
GU.PZZ.HHE. 2021-01-31T23:49:15.41 0.3 undecidable manual P 190 61.494 50 -0.4 65
GU.TRAV.HHE. 2021-01-31T23:49:15.04 0.3 undecidable manual P 37 64.0914 50 -1.18 47
IV.MONC.HHZ. 2021-01-31T23:49:14.97 0.1 undecidable manual P 87 53.2023 50 0.43 88
MN.BNI.HHZ. 2021-01-31T23:49:13.81 0.1 undecidable manual P 270 44.7219 50 0.58 85
GU.BHB.HHZ. 2021-01-31T23:49:13.13 0.6 undecidable manual S 177 24.0537 109 -0.25 48
GU.RRL.HHE. 2021-01-31T23:49:12.84 0.1 undecidable manual P 248 38.8278 50 0.52 88
GU.BHB.HHZ. 2021-01-31T23:49:09.71 0.1 undecidable manual P 177 24.0537 109 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.BHB.HHE. ML:1.3 0.000117 1.32 AML other m 2021-01-31T23:49:13.88
GU.BHB.HHN. ML:1.4 0.0001705 0.08 AML other m 2021-01-31T23:49:13.87
MN.BNI.HNN. ML:1.4 0.0000784 0.14 AML other m 2021-01-31T23:49:19.74
MN.BNI.HHN. ML:1.4 0.00007925 0.14 AML other m 2021-01-31T23:49:19.74
MN.BNI.HNE. ML:1.3 0.000056084999999999996 0.82 AML other m 2021-01-31T23:49:19.50
MN.BNI.HHE. ML:1.2 0.00005205 0.82 AML other m 2021-01-31T23:49:19.50
IV.MRGE.HHE. ML:1.5 0.00004514999999999999 0.44 AML other m 2021-01-31T23:49:31.39
IV.MRGE.HHN. ML:1.5 0.00004575 0.42 AML other m 2021-01-31T23:49:35.28
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