Earthquake with magnitude of ML 0.9 on date 24-10-2021 and time 13:11:59 (Italy) in region Svizzera (SVIZZERA)

A magnitude ML 0.9 earthquake occured in region: Svizzera (SVIZZERA), on

  • 24-10-2021 11:11:59 (UTC)
  • 24-10-2021 13:11:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.778, 9.941 at 11 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.

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
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.9 2021-10-24
11:11:59
46.7778 9.9407 11 2021-10-24
11:22:34
Sala Sismica INGV-Roma 96947161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-24 11:11:59 ± 0.13
Latitude 46.7778 ± 0.0135
Longitude 9.9407 ± 0.0158
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96947161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1706
Semi-minor axis of confidence ellipse (meter) 728
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 1710
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 165
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.62593
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 96947161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-24 11:22:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NOCI.HHZ. 2021-10-24T11:13:57.79 3.0 undecidable manual Pn -2.49 0
IV.ICAI.EHZ. 2021-10-24T11:13:54.75 3.0 negative manual Pg 10.76 0
IV.RIBO.EHZ.01 2021-10-24T11:13:49.49 3.0 undecidable manual Sn -2.57 0
IV.ARVD.HHZ. 2021-10-24T11:13:45.89 3.0 undecidable manual Sn -5.51 0
IV.PAOL.HHZ. 2021-10-24T11:13:43.09 3.0 undecidable manual Pn 0.02 0
IV.PESA.HHZ. 2021-10-24T11:13:37.55 3.0 undecidable manual Sn -3.77 0
IV.CSNT.HHZ. 2021-10-24T11:13:35.35 3.0 undecidable manual Sn -5.08 0
IV.CPGN.EHZ. 2021-10-24T11:13:34.62 3.0 undecidable manual Sn -4.89 0
GU.CANO.HHZ. 2021-10-24T11:13:29.82 3.0 undecidable manual Sg 1.74 0
IV.RNI2.HHZ. 2021-10-24T11:13:27.93 3.0 undecidable manual Pn -4.98 0
IV.ARRO.EHZ. 2021-10-24T11:13:23.47 3.0 positive manual Pg 7.67 0
IV.ARVD.HHZ. 2021-10-24T11:13:07.37 3.0 positive manual Pg 1.93 0
IV.RIBO.EHZ.01 2021-10-24T11:13:06.53 3.0 positive manual Pg 0.72 0
CH.DIX.HHZ. 2021-10-24T11:13:03.94 3.0 undecidable manual Sn -4.08 0
IV.ZEN8.EHZ. 2021-10-24T11:12:25.33 3.0 positive manual P -3.86 0
ST.CARE.HNZ. 2021-10-24T11:12:20.48 0.6 undecidable manual S 124 0.6259 50 -0.46 41
CH.PLONS.HHE. 2021-10-24T11:12:16.14 0.6 undecidable manual S 306 0.4685 50 -0.13 45
SI.MOSI.HHZ. 2021-10-24T11:12:15.84 0.6 undecidable manual S 111 0.447 50 0.2 45
IV.BRMO.HHZ. 2021-10-24T11:12:14.47 0.6 undecidable manual S 135 0.4227 50 -0.44 43
CH.BERNI.HHZ. 2021-10-24T11:12:13.38 0.6 undecidable manual S 171 0.3687 50 0.08 47
ST.CARE.HNZ. 2021-10-24T11:12:12.35 0.1 undecidable manual P 124 0.6259 50 0.29 85
CH.FUORN.HHZ. 2021-10-24T11:12:10.23 0.6 undecidable manual S 125 0.2716 50 -0.2 47
IV.BRMO.HHZ. 2021-10-24T11:12:09.01 0.3 undecidable manual P 135 0.4227 50 0.44 64
SI.MOSI.HHZ. 2021-10-24T11:12:09.25 1.0 positive manual P 111 0.447 50 0.25 22
CH.PLONS.HHE. 2021-10-24T11:12:09.48 3.0 undecidable manual P 306 0.4685 50 0.12 0
CH.BERNI.HHZ. 2021-10-24T11:12:07.98 1.0 positive manual P 171 0.3687 50 0.34 22
CH.FUORN.HHZ. 2021-10-24T11:12:05.56 0.6 positive manual P 125 0.2716 50 -0.43 44
CH.DAVOX.HHZ. 2021-10-24T11:12:03.81 0.6 undecidable manual S 274 0.0423 157 -0.27 48
CH.DAVOX.HHZ. 2021-10-24T11:12:02.39 0.1 undecidable manual P 274 0.0423 157 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.BERNI.HHE. ML:1 3.5505075E-5 0.2048 AML other m 2021-10-24T11:12:13.56
CH.BERNI.HHN. ML:0.8 2.154177E-5 0.0896 AML other m 2021-10-24T11:12:14.98
CH.FUORN.HHE. ML:0.6 2.1685175E-5 1.8624 AML other m 2021-10-24T11:12:10.30
CH.FUORN.HHN. ML:0.7 2.502163E-5 0.2432 AML other m 2021-10-24T11:12:10.28
IV.BRMO.HHE. ML:0.7 1.5036725E-5 0.224 AML other m 2021-10-24T11:12:15.85
IV.BRMO.HHN. ML:0.7 1.26999145E-5 0.1792 AML other m 2021-10-24T11:12:16.09
SI.MOSI.HHE. ML:1.2 4.1768905E-5 0.3776 AML other m 2021-10-24T11:12:15.81
SI.MOSI.HHN. ML:1.3 5.0950955E-5 0.1984 AML other m 2021-10-24T11:12:16.15
IV.ZEN8.EHE. ML:1.6 2.408232E-5 0.0576 AML other m 2021-10-24T11:12:26.82
IV.ZEN8.EHN. ML:1.7 3.18017E-5 0.064 AML other m 2021-10-24T11:12:26.52
IV.ZEN8.HNE. ML:2.3 0.000116911925 0.576 AML other m 2021-10-24T11:12:29.10
IV.ZEN8.HNN. ML:2.5 0.00017433585 0.6848 AML other m 2021-10-24T11:12:59.18
IV.RIBO.EHE.01 ML:4 0.00041614965 0.16 AML other m 2021-10-24T11:13:06.73
IV.ARVD.HHN. ML:2.9 3.917098E-5 1.5232 AML other m 2021-10-24T11:13:39.38
IV.ARVD.HHE. ML:3 4.274307E-5 1.7792 AML other m 2021-10-24T11:13:30.98
IV.ARRO.EHN. ML:2.9 1.9780675E-5 0.3584 AML other m 2021-10-24T11:14:31.31
IV.ARRO.EHE. ML:2.8 1.674517E-5 0.7616 AML other m 2021-10-24T11:14:27.88
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