Earthquake with magnitude of ML 1.6 on date 29-07-2021 and time 06:48:50 (Italy) in region Confine Italia Svizzera (SVIZZERA)

A magnitude ML 1.6 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on

  • 29-07-2021 04:48:50 (UTC)
  • 29-07-2021 06:48:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.2100, 7.2400 at 10 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 1.6 2021-07-29
04:48:50
46.2105 7.2398 10 2021-12-29
11:12:30
Bollettino Sismico Italiano INGV 95381961
Reviewed
Rev100
ML 1.6 2021-07-29
04:48:51
46.1922 7.2822 11 2021-07-29
04:56:40
Sala Sismica INGV-Roma 93329111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-29 04:48:50 ± 0.21
Latitude 46.2105 ± 0.0081
Longitude 7.2398 ± 0.0143
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95381961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1040
Semi-minor axis of confidence ellipse (meter) 711
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 104
Circular confidence region, given by single value of horizontal uncertainty (meter) 1040.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.06210
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 93329111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-29 04:56:40

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 95381961
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-09-13 11:27:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IX.NSC3.EHZ.02 2021-07-29T04:50:46.78 3.0 negative manual Pn -0.06 0
IV.IMOL.EHZ. 2021-07-29T04:50:40.30 3.0 undecidable manual Sn 4.62 0
IV.FAGN.HHZ. 2021-07-29T04:50:35.77 3.0 positive manual Pg 13.99 0
IV.PP3.EHZ. 2021-07-29T04:50:14.41 3.0 positive manual Pn 2.11 0
GU.PZZ.HHZ. 2021-07-29T04:49:47.66 3.0 undecidable manual S 4.36 0
IV.NDIM.HNZ. 2021-07-29T04:49:41.85 3.0 undecidable manual Pn 3.33 0
GU.GRAM.HHZ. 2021-07-29T04:49:38.61 3.0 positive manual Pg 3.47 0
GU.RNCA.HHZ. 2021-07-29T04:49:31.47 3.0 positive manual Pg 3.29 0
GU.PZZ.HHZ. 2021-07-29T04:49:24.20 3.0 negative manual P 2.87 0
GU.TRAV.HHZ. 2021-07-29T04:49:15.87 0.6 undecidable manual S 153 86.7465 50 -0.59 39
GU.LSD.HHZ. 2021-07-29T04:49:15.53 0.6 undecidable manual S 186 83.6496 50 -0.11 44
GU.CIRO.HHZ. 2021-07-29T04:49:12.66 0.6 undecidable manual S 159 72.0723 50 0.11 45
CH.BNALP.HHZ. 2021-07-29T04:49:10.05 0.1 undecidable manual P 51 116.3946 50 -0.02 84
CH.FUSIO.HHZ. 2021-07-29T04:49:09.33 0.1 negative manual P 76 112.2987 50 -0.12 83
CH.MMK.HHN. 2021-07-29T04:49:09.69 0.6 undecidable manual S 107 58.3971 50 0.8 38
GU.RSP.HHZ. 2021-07-29T04:49:09.88 0.1 undecidable manual P 179 117.8931 50 -0.42 77
IV.MRGE.HHZ. 2021-07-29T04:49:06.90 0.6 undecidable manual S 196 50.8158 50 0.04 48
GU.TRAV.HHZ. 2021-07-29T04:49:06.02 0.3 undecidable manual P 153 86.7465 50 0.51 60
GU.LSD.HHZ. 2021-07-29T04:49:05.42 0.1 undecidable manual P 186 83.6496 50 0.38 83
CH.GIMEL.HHZ. 2021-07-29T04:49:04.92 0.6 undecidable manual P 296 82.7505 50 0.03 45
GU.CIRO.HHZ. 2021-07-29T04:49:02.99 0.1 undecidable manual P 159 72.0723 50 -0.26 87
IV.MRGE.HHZ. 2021-07-29T04:49:00.25 0.6 positive manual P 196 50.8158 50 0.28 45
CH.MMK.HHN. 2021-07-29T04:49:00.52 0.6 undecidable manual P 107 58.3971 50 -0.62 41
CH.DIX.HHZ. 2021-07-29T04:48:58.05 0.6 undecidable manual S 138 19.3695 117 -0.04 50
CH.DIX.HHZ. 2021-07-29T04:48:54.97 0.1 negative manual P 138 19.3695 117 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.DIX.HHE. ML:2.1 0.0009215 0.48 AML other m 2021-07-29T04:48:58.42
CH.DIX.HHN. ML:2.1 0.0010350000000000001 0.48 AML other m 2021-07-29T04:48:58.74
IV.MRGE.HHN. ML:1.6 0.00011350000000000001 0.54 AML other m 2021-07-29T04:49:07.20
IV.MRGE.HHE. ML:1.6 0.00011555 0.64 AML other m 2021-07-29T04:49:07.24
GU.CIRO.HHE. ML:1.3 0.00002955 0.52 AML other m 2021-07-29T04:49:13.66
GU.CIRO.HHN. ML:1.3 0.00002835 1.08 AML other m 2021-07-29T04:49:17.05
GU.LSD.HHE. ML:1.4 0.0000334 0.54 AML other m 2021-07-29T04:49:18.42
GU.TRAV.HHN. ML:1.6 0.00004385 1 AML other m 2021-07-29T04:49:19.31
GU.LSD.HHN. ML:1.4 0.00003455 0.26 AML other m 2021-07-29T04:49:19.57
GU.TRAV.HHE. ML:1.7 0.00006745000000000001 0.16 AML other m 2021-07-29T04:49:19.68
GU.RSP.HHN. ML:1.6 0.0000303 0.82 AML other m 2021-07-29T04:49:28.36
CH.BNALP.HHE. ML:1.8 0.0000448 0.3 AML other m 2021-07-29T04:49:28.78
CH.BNALP.HHN. ML:1.6 0.0000351 1.78 AML other m 2021-07-29T04:49:28.07
CH.FUSIO.HHE. ML:1.4 0.00001975 0.48 AML other m 2021-07-29T04:49:30.25
CH.FUSIO.HHN. ML:1.6 0.0000303 0.46 AML other m 2021-07-29T04:49:30.55
GU.RSP.HHE. ML:1.6 0.0000315 0.62 AML other m 2021-07-29T04:49:33.34
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