Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 23-09-2021 and time 22:41:40 (Italy) in region 1 km E Ala (TN)

A magnitude ML 2.2 earthquake occured in region: 1 km E Ala (TN), on

  • 23-09-2021 20:41:40 (UTC)
  • 23-09-2021 22:41:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.7600, 11.0230 at 11 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Ala TN 1 8913 8913
Avio TN 7 4133 13046
Vallarsa TN 8 1395 14441
Brentonico TN 8 4015 18456
Mori TN 11 9678 28134
Trambileno TN 13 1452 29586
Erbezzo VR 13 740 30326
Isera TN 14 2735 33061
Rovereto TN 14 39289 72350
Brentino Belluno VR 15 1395 73745
Bosco Chiesanuova VR 15 3600 77345
Sant'Anna d'Alfaedo VR 16 2553 79898
Ronzo-Chienis TN 16 976 80874
Ferrara di Monte Baldo VR 16 226 81100
Malcesine VR 17 3736 84836
Terragnolo TN 17 716 85552
Nago-Torbole TN 17 2867 88419
Recoaro Terme VI 17 6453 94872
Nogaredo TN 17 2065 96937
Villa Lagarina TN 18 3778 100715
Volano TN 18 3169 103884
Velo Veronese VR 18 770 104654
Valli del Pasubio VI 19 3242 107896
Roverè Veronese VR 19 2115 110011
Pomarolo TN 19 2452 112463
Limone sul Garda BS 19 1181 113644
Selva di Progno VR 19 933 114577
Posina VI 19 566 115143
Nomi TN 19 1398 116541
Riva del Garda TN 20 16926 133467

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km S of Trento (117317 inhabitants)
36 Km N of Verona (258765 inhabitants)
47 Km W of Vicenza (112953 inhabitants)
67 Km E of Brescia (196480 inhabitants)
77 Km W of Padova (210401 inhabitants)
86 Km SW of Bolzano (106441 inhabitants)
96 Km W of Treviso (83731 inhabitants)
97 Km NW of Rovigo (51867 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 2.2 2021-09-23
20:41:40		 45.7598 11.0227 11 2022-03-30
13:04:09		 Bollettino Sismico Italiano INGV 96269991
Reviewed
Rev100 		ML 2.3 2021-09-23
20:41:40		 45.7627 11.0273 11 2021-09-23
21:01:24		 Sala Sismica INGV-Roma 95797641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-23 20:41:40 ± 0.07
Latitude 45.7598 ± 0.0036
Longitude 11.0227 ± 0.0052
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 96269991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 339
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 287
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 62
Number of defining phases 58
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.27344
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 36
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 84
Type of magnitude ML
Reference to an origin 96269991
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-10-05 18:28:53

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 63
Type of magnitude ML
Reference to an origin 95797641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-23 21:01:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
SI.ABSI.HHZ. 2021-09-23T20:42:13.25 0.6 undecidable manual S 12 109.9122 50 0.51 39
SI.MOSI.HHZ. 2021-09-23T20:42:11.06 0.6 undecidable manual S 339 101.7204 50 0.5 40
IV.BRMO.HHZ. 2021-09-23T20:42:07.96 0.3 undecidable manual S 328 93.9393 50 -0.51 58
CH.DAVOX.HHZ. 2021-09-23T20:42:05.49 3.0 positive manual P 1.15 0
IV.STAL.HHZ. 2021-09-23T20:42:04.87 0.6 undecidable manual P 66 141.3474 50 0.73 33
ST.CARE.EHZ. 2021-09-23T20:42:03.76 0.3 undecidable manual S 341 77.9664 50 -0.47 61
SI.ROSI.HHZ. 2021-09-23T20:42:03.67 0.3 undecidable manual P 13 132.9669 50 0.83 49
ST.OZOL.EHZ. 2021-09-23T20:42:02.47 0.6 undecidable manual S 2 71.4729 50 -0.03 45
OX.CIMO.HHZ. 2021-09-23T20:42:02.56 0.6 undecidable manual P 60 125.4744 50 0.88 32
ST.ZIAN.EHZ. 2021-09-23T20:42:02.02 0.3 undecidable manual S 36 70.8735 50 -0.29 64
IV.BRES.EHZ. 2021-09-23T20:42:01.24 0.6 undecidable manual P 27 117.5934 50 0.77 34
OX.CAE.HHZ. 2021-09-23T20:42:00.81 0.6 undecidable manual P 75 112.6983 50 1.09 30
CH.FUORN.HHZ. 2021-09-23T20:42:00.60 3.0 positive manual P 1.09 0
IV.SGAL.EHZ. 2021-09-23T20:41:59.36 0.6 undecidable manual S 249 59.2962 50 0.11 47
SI.ABSI.HHZ. 2021-09-23T20:41:59.96 0.6 undecidable manual P 12 109.9122 50 0.68 36
IV.MDI.HHZ. 2021-09-23T20:41:58.73 0.6 undecidable manual P 271 101.121 50 0.79 35
OX.AGOR.HHZ. 2021-09-23T20:41:58.26 0.3 undecidable manual P 53 97.9242 50 0.81 53
IV.CTI.HHZ. 2021-09-23T20:41:58.41 0.3 undecidable manual S 56 57.9975 50 -0.49 63
SI.MOSI.HHZ. 2021-09-23T20:41:58.86 3.0 undecidable manual P 339 101.7204 50 0.83 52
IV.OPPE.HHZ. 2021-09-23T20:41:57.09 0.3 undecidable manual S 167 51.4152 50 -0.04 70
IV.BRMO.HHZ. 2021-09-23T20:41:57.43 0.1 undecidable manual P 328 93.9393 50 0.61 77
IV.APPI.EHZ. 2021-09-23T20:41:55.25 1.0 positive manual P 11 81.252 50 0.37 21
OX.VARN.HHZ. 2021-09-23T20:41:55.70 0.3 undecidable manual P 72 87.4458 50 -0.13 65
SI.KOSI.HHZ. 2021-09-23T20:41:55.73 0.3 undecidable manual P 19 82.6506 50 0.64 58
IV.BAG8.EHZ. 2021-09-23T20:41:54.70 0.3 undecidable manual S 279 43.623 50 -0.34 67
IV.SALO.HHZ. 2021-09-23T20:41:54.85 0.3 undecidable manual S 248 41.7249 50 0.31 69
IV.VOBA.EHZ. 2021-09-23T20:41:54.47 0.3 undecidable manual S 252 42.2244 50 -0.21 69
ST.CARE.EHZ. 2021-09-23T20:41:54.88 0.1 positive manual P 341 77.9664 50 0.51 21
ST.ZIAN.EHZ. 2021-09-23T20:41:53.47 3.0 undecidable manual P 36 70.8735 50 0.2 67
ST.OZOL.EHZ. 2021-09-23T20:41:53.62 0.3 undecidable manual P 2 71.4729 50 0.25 66
ST.RONC.EHZ. 2021-09-23T20:41:53.79 0.3 undecidable manual S 309 39.4272 50 -0.14 71
ST.PANI.EHZ. 2021-09-23T20:41:53.12 0.3 undecidable manual S 37 40.2264 50 -1.02 52
ST.GAGG.HHZ. 2021-09-23T20:41:52.62 0.3 undecidable manual S 352 36.2415 50 -0.47 66
IV.TEOL.HHZ. 2021-09-23T20:41:52.91 0.3 undecidable manual P 131 67.1772 50 0.21 67
IV.MAGA.HHZ. 2021-09-23T20:41:51.19 0.6 undecidable manual S 273 30.5472 50 -0.38 45
IV.CTI.HHZ. 2021-09-23T20:41:51.07 0.3 undecidable manual P 56 57.9975 50 -0.22 67
IV.SGAL.EHZ. 2021-09-23T20:41:51.96 0.3 undecidable manual P 249 59.2962 50 0.47 65
IV.MABI.HHZ. 2021-09-23T20:41:50.04 0.1 undecidable manual P 310 51.1155 50 -0.19 92
IV.TREG.EHZ. 2021-09-23T20:41:50.64 0.3 undecidable manual S 158 28.3494 50 -0.34 69
IV.OPPE.HHZ. 2021-09-23T20:41:50.66 0.1 undecidable manual P 167 51.4152 50 0.38 89
IV.VOBA.EHZ. 2021-09-23T20:41:49.13 0.1 undecidable manual P 252 42.2244 50 0.28 92
IV.ZEN8.EHN. 2021-09-23T20:41:49.68 0.3 undecidable manual S 239 26.2515 50 -0.75 60
IV.SALO.HHZ. 2021-09-23T20:41:49.00 0.1 undecidable manual P 248 41.7249 50 0.23 94
ST.RONC.EHZ. 2021-09-23T20:41:48.32 0.1 negative manual P 309 39.4272 50 -0.1 95
OX.MARN.HNZ. 2021-09-23T20:41:48.12 0.3 undecidable manual S 133 19.869 50 -0.59 66
ST.PANI.EHZ. 2021-09-23T20:41:48.43 0.3 undecidable manual P 37 40.2264 50 -0.11 71
SI.LUSI.HHZ. 2021-09-23T20:41:48.96 0.3 undecidable manual S 345 22.9548 50 -0.58 65
IV.BAG8.EHZ. 2021-09-23T20:41:48.98 0.1 undecidable manual P 279 43.623 50 -0.09 95
OX.BALD.HHE. 2021-09-23T20:41:48.03 0.3 undecidable manual S 242 17.9709 121 -0.14 75
IV.MAGA.HHZ. 2021-09-23T20:41:47.06 0.1 negative manual P 273 30.5472 50 0.01 99
ST.DOSS.HHZ. 2021-09-23T20:41:47.61 0.3 undecidable manual S 44 18.5703 120 -0.75 64
ST.GAGG.HHZ. 2021-09-23T20:41:47.72 0.1 positive manual P 352 36.2415 50 -0.22 94
ST.VARA.EHZ. 2021-09-23T20:41:46.61 0.3 undecidable manual S 307 12.1767 132 0.04 75
IV.TREG.EHZ. 2021-09-23T20:41:46.68 0.1 negative manual P 158 28.3494 50 -0.04 98
IV.MBAL.EHZ. 2021-09-23T20:41:46.80 0.3 undecidable manual S 241 14.4744 127 -0.37 72
ST.DOSS.HHZ. 2021-09-23T20:41:45.08 0.1 positive manual P 44 18.5703 120 -0.13 100
IV.ZEN8.EHN. 2021-09-23T20:41:45.84 0.1 undecidable manual P 239 26.2515 50 -0.56 87
OX.BALD.HHE. 2021-09-23T20:41:45.28 0.1 positive manual P 242 17.9709 121 0.18 97
OX.MARN.HNZ. 2021-09-23T20:41:45.28 0.1 negative manual P 133 19.869 50 -0.12 99
SI.LUSI.HHZ. 2021-09-23T20:41:45.75 0.1 negative manual P 345 22.9548 50 -0.14 97
ST.VARA.EHZ. 2021-09-23T20:41:44.48 0.1 negative manual P 307 12.1767 132 0.31 95
IV.MBAL.EHZ. 2021-09-23T20:41:44.67 0.1 positive manual P 241 14.4744 127 0.16 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
ST.VARA.HNE. ML:2.6 0.00443 0.18 AML other m 2021-09-23T20:41:46.70
ST.VARA.EHE. ML:2.8 0.007812124 1.8976 AML other m 2021-09-23T20:41:46.97
ST.VARA.HNN. ML:2.8 0.007300671 1.9104 AML other m 2021-09-23T20:41:47.97
IV.MBAL.EHN. ML:2.5 0.003143875 0.0512 AML other m 2021-09-23T20:41:47.49
IV.MBAL.HNE. ML:2.5 0.0028150614999999995 0.1024 AML other m 2021-09-23T20:41:47.35
ST.DOSS.HHE. ML:1.8 0.0005280092499999999 1.7824 AML other m 2021-09-23T20:41:47.96
IV.MBAL.HNN. ML:2.5 0.003165 0.1 AML other m 2021-09-23T20:41:48.21
IV.MBAL.EHE. ML:2.5 0.0033250000000000003 0.1 AML other m 2021-09-23T20:41:48.26
OX.MARN.HNN. ML:2.3 0.0016334365 0.0896 AML other m 2021-09-23T20:41:48.36
OX.MARN.HHN. ML:2.5 0.0021039295 0.0896 AML other m 2021-09-23T20:41:48.36
OX.MARN.HNE. ML:2.4 0.0019540225 0.2176 AML other m 2021-09-23T20:41:48.42
OX.MARN.HHE. ML:2.5 0.0021954124999999996 0.2176 AML other m 2021-09-23T20:41:48.42
SI.LUSI.HHN. ML:2.6 0.00283692 0.1664 AML other m 2021-09-23T20:41:49.33
ST.DOSS.HHN. ML:1.8 0.00046157575 0.128 AML other m 2021-09-23T20:41:49.48
ST.DOSS.HNE. ML:1.7 0.00042190090000000005 0.1408 AML other m 2021-09-23T20:41:49.48
SI.LUSI.HHE. ML:2.2 0.00106494935 0.1408 AML other m 2021-09-23T20:41:49.56
ST.DOSS.HNN. ML:1.8 0.00049446205 0.2944 AML other m 2021-09-23T20:41:50.53
IV.TREG.HNN. ML:2.2 0.00094235775 0.1664 AML other m 2021-09-23T20:41:50.89
IV.TREG.EHN. ML:2.2 0.0009406656 0.1792 AML other m 2021-09-23T20:41:50.90
IV.TREG.HNE. ML:2.5 0.0014787294000000002 0.1408 AML other m 2021-09-23T20:41:51.36
IV.TREG.EHE. ML:2.4 0.00144267165 0.1152 AML other m 2021-09-23T20:41:51.36
IV.MAGA.HHN. ML:2.3 0.00091942835 0.1792 AML other m 2021-09-23T20:41:51.39
ST.GAGG.HNN. ML:2.3 0.0007289999999999999 0.82 AML other m 2021-09-23T20:41:52.56
ST.GAGG.HHE. ML:2.3 0.0008206951499999999 0.1536 AML other m 2021-09-23T20:41:52.55
ST.GAGG.HNE. ML:2.1 0.0004571393 0.1536 AML other m 2021-09-23T20:41:53.19
ST.GAGG.HHN. ML:2.1 0.0004465687 0.256 AML other m 2021-09-23T20:41:53.59
ST.RONC.EHE. ML:2.0 0.0003492764 0.1536 AML other m 2021-09-23T20:41:54.38
IV.MAGA.HHE. ML:2.3 0.0009505696000000002 0.4352 AML other m 2021-09-23T20:41:54.92
IV.BAG8.EHN. ML:2.2 0.0005179053499999999 0.1152 AML other m 2021-09-23T20:41:55.13
IV.BAG8.HNN. ML:2.2 0.0005053643 0.128 AML other m 2021-09-23T20:41:55.14
IV.SALO.HHE. ML:1.9 0.0002421482 0.32 AML other m 2021-09-23T20:41:55.70
IV.BAG8.EHE. ML:2.2 0.0004944318 0.1664 AML other m 2021-09-23T20:41:56.14
IV.BAG8.HNE. ML:2.2 0.0005413653 0.1664 AML other m 2021-09-23T20:41:56.15
IV.CTI.HHN. ML:2.2 0.00032317105 0.192 AML other m 2021-09-23T20:41:59.97
IV.SGAL.EHN. ML:1.8 0.00014266318 0.256 AML other m 2021-09-23T20:41:59.46
IV.CTI.HHE. ML:2.3 0.00040140825000000005 0.0896 AML other m 2021-09-23T20:41:58.94
ST.CARE.EHE. ML:1.8 0.000087737445 0.1536 AML other m 2021-09-23T20:42:04.38
IV.APPI.EHN. ML:2.2 0.00019775375000000001 0.1152 AML other m 2021-09-23T20:42:06.05
IV.APPI.EHE. ML:2.1 0.0001698317 0.1152 AML other m 2021-09-23T20:42:06.32
IV.BRMO.HHE. ML:1.9 0.00007961236499999999 0.2432 AML other m 2021-09-23T20:42:09.45
IV.BRMO.HHN. ML:1.8 0.00006908837499999999 0.1408 AML other m 2021-09-23T20:42:10.23
OX.VARN.HNE. ML:2.4 0.0003067473 0.2304 AML other m 2021-09-23T20:42:11.56
OX.VARN.HHE. ML:2.4 0.00031976985000000004 0.2048 AML other m 2021-09-23T20:42:11.58
OX.VARN.HNN. ML:2.3 0.0002347934 0.1536 AML other m 2021-09-23T20:42:12.02
OX.VARN.HHN. ML:2.3 0.00025096955 0.1536 AML other m 2021-09-23T20:42:12.10
SI.ABSI.HHE. ML:2.4 0.0001989854 0.2304 AML other m 2021-09-23T20:42:14.78
SI.ABSI.HHN. ML:2.3 0.00015263765000000001 1.6416 AML other m 2021-09-23T20:42:15.83
OX.CAE.HHE. ML:2.4 0.0001897673 0.384 AML other m 2021-09-23T20:42:17.34
OX.CAE.HHN. ML:2.5 0.00026419284999999997 0.2816 AML other m 2021-09-23T20:42:17.22
OX.CIMO.HHE. ML:1.7 0.000036922075 0.4096 AML other m 2021-09-23T20:42:20.23
OX.CIMO.HHN. ML:1.8 0.00004235448 0.2176 AML other m 2021-09-23T20:42:20.22
OX.CIMO.HNN. ML:1.9 0.000047948310000000004 0.2176 AML other m 2021-09-23T20:42:20.11
OX.CIMO.HNE. ML:1.7 0.0000372738735 0.256 AML other m 2021-09-23T20:42:20.68
SI.ROSI.HHE. ML:2.3 0.00012881815 0.32 AML other m 2021-09-23T20:42:21.28
IV.STAL.HHE. ML:2.4 0.00013413379999999999 0.2176 AML other m 2021-09-23T20:42:25.27
IV.STAL.HNE. ML:2.5 0.000172263 0.1664 AML other m 2021-09-23T20:42:26.32
IV.STAL.HHN. ML:2.4 0.00013251425 0.1664 AML other m 2021-09-23T20:42:27.09
IV.STAL.HNN. ML:2.4 0.00015352019 0.2816 AML other m 2021-09-23T20:42:28.22
ST.VARA.EHN. ML:0.2 0.000014109854075000001 0.2304 AML other m 2021-09-23T20:41:46.71
ST.RONC.EHN. ML:2.2 0.00063542975 0.1792 AML other m 2021-09-23T20:41:55.58
ST.RONC.HNE. ML:2.1 0.000435056 0.2048 AML other m 2021-09-23T20:41:55.59
ST.RONC.HNN. ML:2.1 0.00045717995 0.2176 AML other m 2021-09-23T20:41:55.83
IV.SALO.HNE. ML:1.9 0.00027064685 0.32 AML other m 2021-09-23T20:41:55.69
IV.SALO.HHN. ML:2.0 0.0003422633 1.1392 AML other m 2021-09-23T20:41:55.24
IV.SALO.HNN. ML:2.1 0.0003976946 0.8832 AML other m 2021-09-23T20:41:55.24
IV.OPPE.HNE. ML:2.5 0.00079037875 0.7168 AML other m 2021-09-23T20:41:53.99
IV.OPPE.HNN. ML:2.4 0.0006315691500000001 0.6016 AML other m 2021-09-23T20:41:57.75
IV.SGAL.EHE. ML:2.0 0.00019191829999999998 0.2432 AML other m 2021-09-23T20:41:59.46
IV.TEOL.HHN. ML:2.3 0.00038559615000000004 0.64 AML other m 2021-09-23T20:42:02.70
ST.ZIAN.EHN. ML:1.8 0.00010729475500000001 0.2432 AML other m 2021-09-23T20:42:02.43
ST.ZIAN.EHE. ML:1.9 0.0001258208 0.1408 AML other m 2021-09-23T20:42:02.35
ST.ZIAN.HNN. ML:1.9 0.000117589605 0.1408 AML other m 2021-09-23T20:42:02.35
ST.ZIAN.HNE. ML:1.9 0.000128255635 0.2432 AML other m 2021-09-23T20:42:02.43
ST.OZOL.EHE. ML:2.3 0.00033622705 0.2944 AML other m 2021-09-23T20:42:04.19
ST.OZOL.HNN. ML:2.2 0.00028227600000000003 0.8448 AML other m 2021-09-23T20:42:04.17
ST.OZOL.EHN. ML:2.0 0.00018057455 0.4992 AML other m 2021-09-23T20:42:07.53
ST.OZOL.HNE. ML:2.3 0.0002956918 0.2944 AML other m 2021-09-23T20:42:04.17
ST.CARE.HNN. ML:2.2 0.000257186285 0.6656 AML other m 2021-09-23T20:42:19.33
ST.CARE.HNE. ML:2.5 0.00043380775000000007 12.5056 AML other m 2021-09-23T20:42:07.32
ST.CARE.EHN. ML:1.9 0.00010351388999999999 0.1024 AML other m 2021-09-23T20:42:04.41
SI.KOSI.HHN. ML:1.8 0.00008590832000000001 0.384 AML other m 2021-09-23T20:42:06.71
IV.MDI.HHN. ML:2.1 0.0001166104 0.7936 AML other m 2021-09-23T20:42:08.97
IV.BRES.EHN. ML:2.0 0.000074706875 0.1792 AML other m 2021-09-23T20:42:20.43
IV.BRES.EHE. ML:1.9 0.00006639888499999998 0.1152 AML other m 2021-09-23T20:42:16.97
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
Waveforms Seismic signals in miniseed + resp format Download