Earthquake with magnitude of ML 1.9 on date 19-08-2021 and time 02:01:27 (Italy) in region Svizzera (SVIZZERA)

A magnitude ML 1.9 earthquake occured in region: Svizzera (SVIZZERA), on

  • 19-08-2021 00:01:27 (UTC)
  • 19-08-2021 02:01:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.2690, 7.2160 at 9 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 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 1.9 2021-08-19
00:01:27
46.2688 7.2163 9 2021-12-29
11:12:32
Bollettino Sismico Italiano INGV 95779121
Reviewed
Rev100
ML 1.9 2021-08-19
00:01:27
46.2718 7.2293 11 2021-08-19
00:18:15
Sala Sismica INGV-Roma 94351921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-19 00:01:27 ± 0.26
Latitude 46.2688 ± 0.0090
Longitude 7.2163 ± 0.0130
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95779121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1049
Semi-minor axis of confidence ellipse (meter) 609
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 38
Circular confidence region, given by single value of horizontal uncertainty (meter) 1050.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.43262
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 95779121
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-09-23 09:49:14

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 94351921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-19 00:18:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LMD.HHZ. 2021-08-19T00:03:19.22 3.0 undecidable manual Sn 3.5 0
IV.LRP.EHZ. 2021-08-19T00:03:07.46 3.0 undecidable manual Pn 2.93 0
IV.MNTT.EHZ. 2021-08-19T00:03:00.58 3.0 negative manual Pn 9.02 0
IV.NDIM.HHZ. 2021-08-19T00:02:54.89 3.0 undecidable manual Sn 1.74 0
IV.CPGN.EHZ. 2021-08-19T00:02:50.56 3.0 undecidable manual Pg 15.32 0
IV.FIR.HHZ. 2021-08-19T00:02:42.07 3.0 undecidable manual Pg 14.89 0
CH.DAVOX.HHZ. 2021-08-19T00:02:31.10 3.0 undecidable manual S 0
IV.MILN.HNZ. 2021-08-19T00:02:23.07 3.0 undecidable manual Sg 2.14 0
GU.BHB.HHZ. 2021-08-19T00:02:13.83 0.6 undecidable manual S 179 159.0186 50 1.01 28
CH.MUGIO.HHZ. 2021-08-19T00:02:09.09 0.6 undecidable manual S 105 145.6431 50 -0.14 39
CH.DAVOX.HHZ. 2021-08-19T00:02:03.21 3.0 undecidable manual P 0
CH.BNALP.HHZ. 2021-08-19T00:02:01.72 0.6 undecidable manual S 54 113.7972 50 0.98 32
GU.TRAV.HHZ. 2021-08-19T00:01:55.14 0.6 undecidable manual S 154 93.3399 50 -0.15 44
GU.LSD.HHZ. 2021-08-19T00:01:54.13 0.6 undecidable manual S 184 90.0432 50 -0.26 43
GU.BHB.HHZ. 2021-08-19T00:01:54.58 0.1 undecidable manual P 179 159.0186 50 0.93 58
GU.RRL.HHE. 2021-08-19T00:01:53.61 0.1 undecidable manual P 193 153.1356 50 0.87 61
CH.MUGIO.HHZ. 2021-08-19T00:01:52.43 0.1 undecidable manual P 105 145.6431 50 0.85 63
CH.GIMEL.HHZ. 2021-08-19T00:01:51.06 0.3 undecidable manual S 292 78.4659 50 -0.24 66
MN.BNI.HHE. 2021-08-19T00:01:51.32 0.6 undecidable manual P 197 141.2475 50 0.41 38
GU.RSP.HHZ. 2021-08-19T00:01:48.68 0.1 undecidable manual P 178 124.3866 50 0.38 78
CH.MMK.HHZ. 2021-08-19T00:01:46.31 0.3 undecidable manual S 113 62.3931 50 -0.69 60
CH.BNALP.HHZ. 2021-08-19T00:01:46.24 0.1 undecidable manual P 54 113.7972 50 -0.44 79
IV.MRGE.HHZ. 2021-08-19T00:01:44.89 0.1 undecidable manual S 192 56.5989 50 -0.59 84
GU.TRAV.HHZ. 2021-08-19T00:01:43.17 0.1 undecidable manual P 154 93.3399 50 -0.36 84
GU.LSD.HHZ. 2021-08-19T00:01:43.06 0.1 undecidable manual P 184 90.0432 50 0.05 90
CH.GIMEL.HHZ. 2021-08-19T00:01:40.90 0.1 undecidable manual P 292 78.4659 50 -0.33 87
CH.MMK.HHZ. 2021-08-19T00:01:38.69 0.1 undecidable manual P 113 62.3931 50 -0.06 95
IV.MRGE.HHZ. 2021-08-19T00:01:37.74 0.1 positive manual P 192 56.5989 50 -0.13 94
CH.DIX.HHZ. 2021-08-19T00:01:36.71 0.1 undecidable manual S 145 25.6521 110 -0.18 99
CH.DIX.HHZ. 2021-08-19T00:01:32.79 0.1 negative manual P 145 25.6521 110 -0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.DIX.HHE. ML:1.9 0.00042300000000000004 0.26 AML other m 2021-08-19T00:01:36.97
CH.DIX.HHN. ML:2.1 0.0007735000000000001 0.34 AML other m 2021-08-19T00:01:37.26
IV.MRGE.HHN. ML:2.2 0.00033099999999999997 0.28 AML other m 2021-08-19T00:01:45.05
IV.MRGE.HHE. ML:2.1 0.0002605 0.2 AML other m 2021-08-19T00:01:45.11
CH.MMK.HHN. ML:0.9 0.000016800000000000002 0.78 AML other m 2021-08-19T00:01:47.39
CH.MMK.HHE. ML:0.9 0.00001415 0.38 AML other m 2021-08-19T00:01:49.67
CH.GIMEL.HHE. ML:1.8 0.00009865783999999999 0.16 AML other m 2021-08-19T00:01:52.65
CH.GIMEL.HHN. ML:1.9 0.00011934819 0.39 AML other m 2021-08-19T00:01:53.79
GU.LSD.HHE. ML:1.7 0.000058810785 0.14 AML other m 2021-08-19T00:01:55.31
GU.LSD.HHN. ML:1.5 0.00004095 0.68 AML other m 2021-08-19T00:01:56.62
GU.TRAV.HHN. ML:1.7 0.00006245 0.3 AML other m 2021-08-19T00:01:57.82
GU.TRAV.HHE. ML:1.7 0.000047799999999999996 0.2 AML other m 2021-08-19T00:01:58.25
CH.BNALP.HHN. ML:1.9 0.000060290365 0.32 AML other m 2021-08-19T00:02:04.41
CH.BNALP.HHE. ML:1.9 0.00006597573999999999 0.19 AML other m 2021-08-19T00:02:05.11
CH.MUGIO.HHN. ML:1.9 0.00004565 1.72 AML other m 2021-08-19T00:02:10.96
GU.RSP.HHE. ML:2.1 0.0000967 0.34 AML other m 2021-08-19T00:02:12.12
GU.RSP.HNE. ML:2.0 0.00007515 0.34 AML other m 2021-08-19T00:02:12.29
GU.RSP.HNN. ML:2.1 0.00008204066499999999 0.45 AML other m 2021-08-19T00:02:12.45
GU.RSP.HHN. ML:2.1 0.000086655115 0.42 AML other m 2021-08-19T00:02:12.45
CH.MUGIO.HHE. ML:1.9 0.000041599999999999995 0.44 AML other m 2021-08-19T00:02:14.17
GU.BHB.HHE. ML:1.8 0.0000292 0.38 AML other m 2021-08-19T00:02:14.75
GU.BHB.HHN. ML:1.7 0.000025803634999999997 1.52 AML other m 2021-08-19T00:02:19.79
CH.DAVOX.HHN. ML:2.7 0.00014649999999999998 0.34 AML other m 2021-08-19T00:02:32.62
CH.DAVOX.HHE. ML:2.6 0.00009515000000000001 1.5 AML other m 2021-08-19T00:02:34.04
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