Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 25-02-2022 and time 07:35:10 (Italy) in region Svizzera (SVIZZERA)

A magnitude ML 1.8 earthquake occured in region: Svizzera (SVIZZERA), on

  • 25-02-2022 06:35:10 (UTC)
  • 25-02-2022 07:35:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.7060, 9.7530 at 13 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.

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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 1.8 2022-02-25
06:35:10		 46.7062 9.7532 13 2022-07-08
12:33:56		 Bollettino Sismico Italiano INGV 104554221
Reviewed
Rev100 		ML 1.9 2022-02-25
06:35:10		 46.7067 9.7633 13 2022-02-25
06:45:10		 Sala Sismica INGV-Roma 101436461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-02-25 06:35:10 ± 0.13
Latitude 46.7062 ± 0.0090
Longitude 9.7532 ± 0.0079
Depth (km) 13 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 104554221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 871
Semi-minor axis of confidence ellipse (meter) 574
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 20
Circular confidence region, given by single value of horizontal uncertainty (meter) 870.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.11421
Epicentral distance of station farthest from the epicenter (degree) 1.10976
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.4
Num. used stations 30
Type of magnitude ML
Reference to an origin 101436461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-02-25 06:45:10

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 22
Type of magnitude ML
Reference to an origin 104554221
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-05-12 22:00:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
ST.RONC.EHZ. 2022-02-25T06:35:41.10 1.0 undecidable manual S 140 104.5176 91 0.44 19
IV.MDI.HHZ. 2022-02-25T06:35:40.10 0.6 undecidable manual S 182 103.9182 91 -0.4 38
IV.MABI.HHZ. 2022-02-25T06:35:37.80 0.3 undecidable manual S 141 92.7405 91 0.27 61
ST.CARE.EHZ. 2022-02-25T06:35:34.00 0.6 undecidable manual S 113 78.2661 92 0.34 41
IV.VARE.HHN. 2022-02-25T06:35:30.67 0.1 undecidable manual P 219 119.6913 91 0.5 75
SI.LUSI.HHZ. 2022-02-25T06:35:30.97 0.1 undecidable manual P 132 123.1878 91 0.26 77
SI.MOSI.HHZ. 2022-02-25T06:35:29.60 0.6 undecidable manual S 99 61.3941 92 0.43 42
IV.MDI.HHZ. 2022-02-25T06:35:28.33 0.3 undecidable manual P 182 103.9182 91 0.59 56
ST.RONC.EHZ. 2022-02-25T06:35:27.82 0.3 undecidable manual P 140 104.5176 91 -0.01 63
CH.MUGIO.HHN. 2022-02-25T06:35:27.42 0.1 undecidable manual P 212 102.7194 91 -0.13 81
CH.BNALP.HHE. 2022-02-25T06:35:27.29 0.1 undecidable manual P 281 102.5196 91 -0.23 79
IV.BORM.HNE. 2022-02-25T06:35:26.70 0.6 undecidable manual S 119 54.3012 93 -0.56 41
IV.MABI.HHZ. 2022-02-25T06:35:26.41 0.3 undecidable manual P 141 92.7405 91 0.39 60
IV.BRMO.HHZ. 2022-02-25T06:35:26.50 0.3 undecidable manual S 118 53.6019 93 -0.59 61
CH.PLONS.HHZ. 2022-02-25T06:35:25.30 0.3 undecidable manual S 324 47.4192 93 -0.13 68
CH.FUSIO.HHZ. 2022-02-25T06:35:25.15 0.1 undecidable manual P 252 87.6456 92 -0.09 84
ST.CARE.EHZ. 2022-02-25T06:35:24.09 0.3 undecidable manual P 113 78.2661 92 0.3 63
CH.BERNI.HHZ. 2022-02-25T06:35:22.60 0.3 undecidable manual S 148 38.4282 95 -0.44 65
CH.FUORN.HHZ. 2022-02-25T06:35:22.90 0.3 undecidable manual S 104 40.0266 94 -0.56 64
SI.MOSI.HHZ. 2022-02-25T06:35:21.39 0.3 undecidable manual P 99 61.3941 92 0.19 66
IV.BORM.HNE. 2022-02-25T06:35:20.03 0.6 undecidable manual P 119 54.3012 93 -0.07 46
CH.PLONS.HHZ. 2022-02-25T06:35:19.44 0.3 undecidable manual P 324 47.4192 93 0.4 66
IV.BRMO.HHZ. 2022-02-25T06:35:19.94 0.3 undecidable manual P 118 53.6019 93 -0.06 69
CH.BERNI.HHZ. 2022-02-25T06:35:17.30 0.1 undecidable manual P 148 38.4282 95 -0.35 88
CH.FUORN.HHZ. 2022-02-25T06:35:17.94 0.1 undecidable manual P 104 40.0266 94 0.04 95
CH.DAVOX.HHZ. 2022-02-25T06:35:16.30 0.3 undecidable manual S 49 12.6762 123 -0.07 75
CH.DAVOX.HHZ. 2022-02-25T06:35:13.80 0.1 positive manual P 49 12.6762 123 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.DAVOX.HHE. ML:2.3 0.0019850000000000002 0.22 AML other m 2022-02-25T06:35:16.77
CH.DAVOX.HHN. ML:2.5 0.00317 0.1 AML other m 2022-02-25T06:35:16.68
CH.BERNI.HHE. ML:1.5 0.0001134323 0.0896 AML other m 2022-02-25T06:35:22.84
CH.BERNI.HHN. ML:1.4 0.00010225821500000002 0.0608 AML other m 2022-02-25T06:35:22.96
CH.FUORN.HHN. ML:1.7 0.00016109240000000002 0.2688 AML other m 2022-02-25T06:35:24.85
CH.FUORN.HHE. ML:1.5 0.000117 0.32 AML other m 2022-02-25T06:35:25.81
IV.BRMO.HHN. ML:1.3 0.00004451937601999999 0.1792 AML other m 2022-02-25T06:35:27.83
IV.BRMO.HHE. ML:1.1 0.000031943285 0.2176 AML other m 2022-02-25T06:35:29.48
SI.MOSI.HHN. ML:2.0 0.0002165 0.3 AML other m 2022-02-25T06:35:31.62
SI.MOSI.HHE. ML:2.0 0.00020023109 0.3424 AML other m 2022-02-25T06:35:31.81
ST.CARE.EHN. ML:1.5 0.000045930810000000005 0.2176 AML other m 2022-02-25T06:35:35.27
ST.CARE.EHE. ML:1.2 0.000023954169999999996 0.16 AML other m 2022-02-25T06:35:37.84
IV.MABI.HHN. ML:1.3 0.0000213 1.84 AML other m 2022-02-25T06:35:38.97
IV.MDI.HNN. ML:0.0 0.0001994524 0.7904 AML other m 2022-02-25T06:35:38.52
IV.MABI.HHE. ML:1.3 0.0000213 0.54 AML other m 2022-02-25T06:35:38.93
ST.RONC.HNE. ML:2.5 0.0002921549 1.1008 AML other m 2022-02-25T06:35:39.21
IV.MDI.HHN. ML:0.0 0.00004991998 0.3392 AML other m 2022-02-25T06:35:41.59
IV.MDI.HHE. ML:0.0 0.00004809237 0.2176 AML other m 2022-02-25T06:35:42.41
ST.RONC.EHN. ML:2.1 0.0001121 0.18 AML other m 2022-02-25T06:35:43.25
ST.RONC.EHE. ML:1.9 0.00006975 0.16 AML other m 2022-02-25T06:35:43.86
ST.RONC.HNN. ML:2.3 0.00020206079999999997 1.4592 AML other m 2022-02-25T06:35:43.13
IV.MDI.HNE. ML:2.2 0.00013881097 1.1104 AML other m 2022-02-25T06:35:59.71
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