Earthquake with magnitude of ML 1.0 on date 22-02-2018 and time 23:22:41 (UTC) in region 4 km N Coassolo Torinese (TO)

A magnitude ML 1.0 earthquake occured in region: 4 km N Coassolo Torinese (TO), on

  • 22-02-2018 23:22:41 (UTC)
  • 23-02-2018 00:22:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.3400, 7.4690 at 7 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
Coassolo Torinese TO 4 1547 1547
Monastero di Lanzo TO 5 350 1897
Corio TO 6 3277 5174
Cantoira TO 7 564 5738
Ceres TO 7 1065 6803
Pessinetto TO 7 606 7409
Lanzo Torinese TO 8 5086 12495
Mezzenile TO 8 786 13281
Traves TO 8 518 13799
Germagnano TO 9 1201 15000
Locana TO 9 1498 16498
Balangero TO 9 3156 19654
Rocca Canavese TO 9 1708 21362
Forno Canavese TO 9 3446 24808
Chialamberto TO 10 345 25153
Pratiglione TO 10 535 25688
Sparone TO 10 1038 26726
Ribordone TO 11 53 26779
Canischio TO 11 277 27056
Mathi TO 11 3921 30977
Levone TO 11 442 31419
Cafasse TO 11 3451 34870
Grosso TO 12 1018 35888
Alpette TO 12 261 36149
Prascorsano TO 12 745 36894
Rivara TO 12 2659 39553
Villanova Canavese TO 13 1186 40739
San Colombano Belmonte TO 13 383 41122
Ala di Stura TO 13 469 41591
Vallo Torinese TO 13 774 42365
Nole TO 13 6892 49257
Viù TO 13 1051 50308
Pont-Canavese TO 13 3483 53791
Vauda Canavese TO 14 1464 55255
Pertusio TO 14 778 56033
Barbania TO 14 1607 57640
Fiano TO 14 2695 60335
Varisella TO 15 810 61145
Groscavallo TO 15 204 61349
Busano TO 15 1687 63036
San Carlo Canavese TO 15 4031 67067
Valperga TO 15 3166 70233
Frassinetto TO 15 274 70507
Cuorgnè TO 15 9906 80413
San Ponso TO 16 267 80680
Ciriè TO 16 18909 99589
Ingria TO 16 52 99641
Front TO 17 1677 101318
Chiesanuova TO 17 205 101523
Favria TO 17 5196 106719
Robassomero TO 17 3057 109776
Salassa TO 18 1838 111614
Noasca TO 18 137 111751
Oglianico TO 18 1506 113257
Borgiallo TO 18 569 113826
La Cassa TO 18 1788 115614
Lemie TO 18 179 115793
San Maurizio Canavese TO 19 10237 126030
Ronco Canavese TO 19 314 126344
Colleretto Castelnuovo TO 19 332 126676
San Francesco al Campo TO 19 5005 131681
Castellamonte TO 20 9859 141540
Cintano TO 20 258 141798
Balme TO 20 115 141913

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NW of Torino (890529 inhabitants)
41 Km NW of Moncalieri (57294 inhabitants)
76 Km NW of Asti (76202 inhabitants)
91 Km W 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 1.0 2018-02-22
23:22:41
45.3403 7.4687 7 2019-04-24
14:49:47
Bollettino Sismico Italiano INGV 65535111
Reviewed
Rev100
ML 1.0 2018-02-22
23:22:41
45.3508 7.4822 10 2018-02-22
23:28:26
Sala Sismica INGV-Roma 54100231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-02-22 23:22:41 ± 0.21
Latitude 45.3403 ± 0.0099
Longitude 7.4687 ± 0.0141
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 65535111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1253
Semi-minor axis of confidence ellipse (meter) 222
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 314
Circular confidence region, given by single value of horizontal uncertainty (meter) 1250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.51
Epicentral distance of station closest to the epicenter (degree) 0.23922
Epicentral distance of station farthest from the epicenter (degree) 0.78960
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 54100231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-02-22 23:28:26

ML:1.0

Field Value
Value 1.0
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 65535111
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-02-14 10:23:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.MMK.HHZ. 2018-02-22T23:23:07.52 0.1 undecidable manual S 26 87.6456 50 -0.69 75
IV.MRGE.HHZ. 2018-02-22T23:22:59.78 0.1 undecidable manual S 327 57.1983 50 -0.31 90
CH.MMK.HHZ. 2018-02-22T23:22:57.20 0.1 undecidable manual P 26 87.6456 50 0.32 85
IV.MRGE.HHZ. 2018-02-22T23:22:52.77 0.1 undecidable manual P 327 57.1983 50 0.58 84
GU.CIRO.HHZ. 2018-02-22T23:22:52.03 0.1 undecidable manual S 15 30.0477 103 -0.03 100
IV.MONC.HHN. 2018-02-22T23:22:51.68 0.3 undecidable manual P 129 46.4202 50 1.15 50
GU.TRAV.HHZ. 2018-02-22T23:22:51.01 0.3 undecidable manual S 48 28.8489 103 -0.67 64
GU.LSD.HHZ. 2018-02-22T23:22:51.62 0.1 undecidable manual S 297 29.2485 103 -0.17 97
GU.BHB.HHN. 2018-02-22T23:22:51.59 0.6 undecidable manual P 196 58.2972 50 -0.77 39
GU.RSP.HNZ. 2018-02-22T23:22:49.99 0.6 undecidable manual S 217 26.5512 104 -0.91 39
GU.LSD.HHZ. 2018-02-22T23:22:47.98 0.1 undecidable manual P 297 29.2485 103 0.58 88
GU.TRAV.HHZ. 2018-02-22T23:22:47.39 0.1 undecidable manual P 48 28.8489 103 0.06 100
GU.CIRO.HHZ. 2018-02-22T23:22:47.90 0.1 undecidable manual P 15 30.0477 103 0.34 94
GU.RSP.HNZ. 2018-02-22T23:22:46.73 0.1 undecidable manual P 217 26.5512 104 -0.16 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.TRAV.HHE. ML:1.1 0.00006135 0.2 AML other m 2018-02-22T23:22:50.94
GU.TRAV.HHN. ML:1.0 0.00005300000000000001 0.48 AML other m 2018-02-22T23:22:51.99
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