Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 05-04-2020 and time 14:19:56 (UTC) in region 4 km NW Saint Nicolas (AO)

A magnitude ML 0.6 earthquake occured in region: 4 km NW Saint Nicolas (AO), on

  • 05-04-2020 14:19:56 (UTC)
  • 05-04-2020 16:19:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.7540, 7.1480 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Saint-Nicolas AO 4 311 311
Avise AO 5 305 616
La Salle AO 6 2087 2703
Arvier AO 6 873 3576
Villeneuve AO 7 1289 4865
Introd AO 8 658 5523
Saint-Pierre AO 8 3165 8688
Saint-Rhémy-en-Bosses AO 8 338 9026
Morgex AO 9 2104 11130
Aymavilles AO 9 2086 13216
Saint-Oyen AO 9 203 13419
Sarre AO 9 4927 18346
Etroubles AO 10 501 18847
Jovençan AO 11 736 19583
Rhêmes-Saint-Georges AO 11 194 19777
Gressan AO 12 3387 23164
Allein AO 12 229 23393
Gignod AO 12 1710 25103
Pré-Saint-Didier AO 13 1050 26153
Roisan AO 13 1036 27189
Aosta AO 14 34390 61579
Courmayeur AO 14 2807 64386
Charvensod AO 14 2468 66854
Doues AO 14 510 67364
Valgrisenche AO 15 196 67560
La Thuile AO 16 761 68321
Valpelline AO 16 657 68978
Saint-Christophe AO 16 3432 72410
Pollein AO 17 1569 73979
Ollomont AO 17 157 74136
Valsavarenche AO 19 161 74297

Municipalities with at least 50000 inhabitants

An earthquake occurred to
86 Km NW of Torino (890529 inhabitants)
94 Km NW 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
Reviewed
Rev100 		ML 0.6 2020-04-05
14:19:56		 45.7542 7.1483 11 2020-04-05
14:41:08		 Sala Sismica INGV-Roma 77921151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-05 14:19:56 ± 0.18
Latitude 45.7542 ± 0.0126
Longitude 7.1483 ± 0.0296
Depth (km) 11 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77921151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2219
Semi-minor axis of confidence ellipse (meter) 1403
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 269
Circular confidence region, given by single value of horizontal uncertainty (meter) 2220.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.48
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48294
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 77921151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-05 14:41:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EUCT.HNZ. 2020-04-05T14:20:45.94 3.0 undecidable manual Sn 0.6 0
CH.DIX.HHZ. 2020-04-05T14:20:09.96 0.3 undecidable manual S 29 41.3253 50 -0.36 69
GU.CIRO.HHZ. 2020-04-05T14:20:08.38 0.1 undecidable manual S 117 36.6411 50 -0.69 83
GU.LSD.HHE. 2020-04-05T14:20:07.46 0.6 undecidable manual S 182 32.745 50 -0.56 44
GU.TRAV.HHZ. 2020-04-05T14:20:06.95 0.3 undecidable manual P 120 53.6019 50 0.5 65
CH.DIX.HHZ. 2020-04-05T14:20:04.91 0.3 undecidable manual P 29 41.3253 50 0.35 69
GU.CIRO.HHZ. 2020-04-05T14:20:04.13 0.1 undecidable manual P 117 36.6411 50 0.29 94
GU.BLANC.HHZ. 2020-04-05T14:20:03.98 0.1 undecidable manual S 301 19.3695 118 -0.36 95
GU.LSD.HHE. 2020-04-05T14:20:03.65 0.3 undecidable manual P 182 32.745 50 0.41 69
GU.BLANC.HHZ. 2020-04-05T14:20:01.66 0.1 undecidable manual P 301 19.3695 118 0.55 91
IV.MRGE.HHZ. 2020-04-05T14:20:00.62 0.1 undecidable manual S 284 6.993 146 -0.45 96
IV.MRGE.HHZ. 2020-04-05T14:19:59.47 0.1 undecidable manual P 284 6.993 146 0.24 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRGE.HHN. ML:0.8 0.000088639135 0.0832 AML other m 2020-04-05T14:20:00.89
IV.MRGE.HHE. ML:0.7 0.00007662989000000001 0.0576 AML other m 2020-04-05T14:20:00.85
GU.CIRO.HHN. ML:0.6 0.00001611013 1.8944 AML other m 2020-04-05T14:20:08.25
GU.CIRO.HHE. ML:0.1 0.000005673345 1.024 AML other m 2020-04-05T14:20:08.80
CH.DIX.HHE. ML:0.9 0.000024725705 1.2992 AML other m 2020-04-05T14:20:10.24
CH.DIX.HHN. ML:0.5 0.000011776294999999999 0.5376 AML other m 2020-04-05T14:20:10.77
GU.TRAV.HHE. ML:0.3 0.000006548235000000001 0.8576 AML other m 2020-04-05T14:20:13.23
GU.TRAV.HHN. ML:0.6 0.00000775572 0.32 AML other m 2020-04-05T14:20:13.98
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