Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 19-04-2021 and time 01:00:26 (Italy) in region 3 km NW Ala (TN)

A magnitude ML 1.3 earthquake occured in region: 3 km NW Ala (TN), on

  • 18-04-2021 23:00:26 (UTC)
  • 19-04-2021 01:00:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.7760, 10.9820 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 3 8913 8913
Brentonico TN 5 4015 12928
Avio TN 5 4133 17061
Mori TN 9 9678 26739
Vallarsa TN 11 1395 28134
Isera TN 13 2735 30869
Trambileno TN 13 1452 32321
Ronzo-Chienis TN 13 976 33297
Rovereto TN 13 39289 72586
Nago-Torbole TN 13 2867 75453
Malcesine VR 14 3736 79189
Ferrara di Monte Baldo VR 15 226 79415
Brentino Belluno VR 15 1395 80810
Erbezzo VR 15 740 81550
Limone sul Garda BS 15 1181 82731
Nogaredo TN 16 2065 84796
Villa Lagarina TN 16 3778 88574
Riva del Garda TN 16 16926 105500
Sant'Anna d'Alfaedo VR 17 2553 108053
Volano TN 17 3169 111222
Bosco Chiesanuova VR 17 3600 114822
Pomarolo TN 18 2452 117274
Terragnolo TN 18 716 117990
Arco TN 18 17526 135516
Tremosine sul Garda BS 18 2100 137616
Brenzone sul Garda VR 18 2474 140090
Nomi TN 18 1398 141488
Tenno TN 20 2069 143557
Calliano TN 20 1807 145364

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km SW of Trento (117317 inhabitants)
38 Km N of Verona (258765 inhabitants)
51 Km W of Vicenza (112953 inhabitants)
65 Km E of Brescia (196480 inhabitants)
81 Km W of Padova (210401 inhabitants)
86 Km SW of Bolzano (106441 inhabitants)
99 Km W of Treviso (83731 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 1.3 2021-04-18
23:00:26		 45.7763 10.9823 11 2021-07-12
16:55:12		 Bollettino Sismico Italiano INGV 90327091
Reviewed
Rev100 		ML 1.3 2021-04-18
23:00:27		 45.7787 10.9873 7 2021-04-18
23:10:42		 Sala Sismica INGV-Roma 89234321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-18 23:00:26 ± 0.06
Latitude 45.7763 ± 0.0027
Longitude 10.9823 ± 0.0039
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 90327091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 348
Semi-minor axis of confidence ellipse (meter) 130
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 328
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 47
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) 0.07734
Epicentral distance of station farthest from the epicenter (degree) 1.05850
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 90327091
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-21 11:26:06

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 89234321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-18 23:10:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
ST.OZOL.EHZ. 2021-04-18T23:00:48.23 0.3 undecidable manual S 4 69.7746 50 0.2 67
IV.ZONE.HHZ. 2021-04-18T23:00:47.06 0.3 undecidable manual S 269 66.9774 50 -0.2 65
OX.CGRP.HHZ. 2021-04-18T23:00:46.24 0.6 undecidable manual S 79 64.5909 50 -0.39 42
IV.BRES.EHZ. 2021-04-18T23:00:46.66 0.3 undecidable manual P 29 117.4935 50 0.22 60
IV.CTI.HHZ. 2021-04-18T23:00:45.05 0.3 undecidable manual S 59 59.6958 50 -0.27 65
IV.FREG.EHZ. 2021-04-18T23:00:44.93 1.0 undecidable manual P 75 106.0161 50 0.27 20
SI.MOSI.HHZ. 2021-04-18T23:00:44.42 0.3 undecidable manual P 341 98.9232 50 0.84 52
OX.VARN.HHZ. 2021-04-18T23:00:42.52 0.3 undecidable manual P 74 89.9433 50 0.33 62
IV.BRMO.HHZ. 2021-04-18T23:00:42.64 0.3 undecidable manual P 329 90.7425 50 0.33 62
IV.MABI.HHZ. 2021-04-18T23:00:41.56 0.3 undecidable manual S 311 47.5191 50 -0.51 62
SI.KOSI.HHZ. 2021-04-18T23:00:41.42 0.3 undecidable manual P 22 82.0512 50 0.45 61
IV.APPI.EHZ. 2021-04-18T23:00:40.97 0.3 undecidable manual P 14 80.1642 50 0.28 64
IV.SALO.HHZ. 2021-04-18T23:00:40.39 0.3 undecidable manual S 244 39.627 50 0.44 67
ST.ZIAN.EHZ. 2021-04-18T23:00:39.52 0.3 undecidable manual P 39 71.2731 50 0.21 66
IV.TEOL.HHE. 2021-04-18T23:00:39.61 0.1 undecidable manual P 130 70.6737 50 0.38 84
IV.BAG8.EHE. 2021-04-18T23:00:39.63 0.6 undecidable manual S 278 40.2264 50 -0.49 43
ST.OZOL.EHZ. 2021-04-18T23:00:39.41 0.6 undecidable manual P 4 69.7746 50 0.31 43
IV.ZONE.HHZ. 2021-04-18T23:00:38.91 0.3 undecidable manual P 269 66.9774 50 0.25 66
ST.GAGG.HHZ. 2021-04-18T23:00:38.41 0.3 undecidable manual S 357 34.1436 50 -0.09 71
ST.RONC.EHZ. 2021-04-18T23:00:38.63 0.3 undecidable manual S 309 35.8419 50 -0.31 67
OX.CGRP.HHZ. 2021-04-18T23:00:38.37 0.3 undecidable manual P 79 64.5909 50 0.08 68
IV.CTI.HHZ. 2021-04-18T23:00:37.58 0.3 undecidable manual P 59 59.6958 50 0.05 70
IV.TREG.EHZ. 2021-04-18T23:00:37.37 0.3 undecidable manual S 154 31.3464 50 -0.38 68
IV.MAGA.HHZ. 2021-04-18T23:00:36.39 0.3 undecidable manual S 270 27.3504 50 -0.3 69
OX.MARN.HHN. 2021-04-18T23:00:35.45 0.3 undecidable manual S 131 23.3544 50 -0.18 72
IV.ZEN8.EHZ. 2021-04-18T23:00:35.67 0.3 undecidable manual S 232 24.753 50 -0.32 69
IV.MABI.HHZ. 2021-04-18T23:00:35.37 0.3 undecidable manual P 311 47.5191 50 -0.29 67
ST.PANI.EHZ. 2021-04-18T23:00:34.63 0.1 undecidable manual P 42 40.7259 50 0.03 97
IV.BAG8.EHE. 2021-04-18T23:00:34.55 0.1 undecidable manual P 278 40.2264 50 0.01 97
IV.VOBA.EHZ. 2021-04-18T23:00:34.60 0.3 undecidable manual P 248 39.9267 50 0.12 71
IV.SALO.HHZ. 2021-04-18T23:00:34.90 0.3 undecidable manual P 244 39.627 50 0.47 66
SI.LUSI.HHZ. 2021-04-18T23:00:34.45 0.3 undecidable manual S 352 20.5683 50 -0.41 68
IV.TREG.EHZ. 2021-04-18T23:00:33.09 0.3 undecidable manual P 154 31.3464 50 -0.06 73
OX.BALD.HHZ. 2021-04-18T23:00:33.72 0.6 undecidable manual S 231 16.3725 124 0 49
ST.GAGG.HHZ. 2021-04-18T23:00:33.55 0.1 undecidable manual P 357 34.1436 50 -0.04 96
ST.DOSS.HHZ. 2021-04-18T23:00:33.97 0.3 undecidable manual S 54 19.6692 50 -0.67 64
ST.RONC.EHZ. 2021-04-18T23:00:33.81 0.1 undecidable manual P 309 35.8419 50 -0.04 96
IV.MAGA.HHZ. 2021-04-18T23:00:32.51 0.1 undecidable manual P 270 27.3504 50 -0.04 98
IV.MBAL.EHZ. 2021-04-18T23:00:32.47 0.3 undecidable manual S 228 12.9759 130 -0.3 74
ST.DOSS.HHZ. 2021-04-18T23:00:31.32 0.1 undecidable manual P 54 19.6692 50 -0.05 100
ST.VARA.EHZ. 2021-04-18T23:00:31.80 0.3 undecidable manual S 310 8.5803 142 0.08 74
SI.LUSI.HHZ. 2021-04-18T23:00:31.48 0.1 negative manual P 352 20.5683 50 -0.02 100
OX.MARN.HHN. 2021-04-18T23:00:31.73 0.3 undecidable manual P 131 23.3544 50 -0.21 72
IV.ZEN8.EHZ. 2021-04-18T23:00:31.92 0.3 undecidable manual P 232 24.753 50 -0.22 71
ST.VARA.EHZ. 2021-04-18T23:00:30.06 0.1 positive manual P 310 8.5803 142 0.39 93
OX.BALD.HHZ. 2021-04-18T23:00:30.98 0.1 undecidable manual P 231 16.3725 124 0.14 96
IV.MBAL.EHZ. 2021-04-18T23:00:30.40 0.1 undecidable manual P 228 12.9759 130 0.11 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
ST.DOSS.HHE. ML:1.1 0.0000848 0.78 AML other m 2021-04-18T23:00:34.18
SI.LUSI.HHN. ML:1.7 0.00033650000000000005 0.14 AML other m 2021-04-18T23:00:34.58
SI.LUSI.HHE. ML:1.5 0.0002105 0.16 AML other m 2021-04-18T23:00:34.53
IV.ZEN8.EHN. ML:1.0 0.0000665 1.04 AML other m 2021-04-18T23:00:35.79
IV.ZEN8.EHE. ML:1.1 0.00007244999999999999 1.28 AML other m 2021-04-18T23:00:36.86
ST.DOSS.HHN. ML:1.1 0.00008995 0.64 AML other m 2021-04-18T23:00:36.23
IV.MAGA.HHN. ML:1.4 0.000123 0.2 AML other m 2021-04-18T23:00:36.50
IV.MAGA.HHE. ML:1.4 0.000129 0.34 AML other m 2021-04-18T23:00:36.80
IV.TREG.EHE. ML:1.5 0.0001295 0.86 AML other m 2021-04-18T23:00:38.51
IV.TREG.EHN. ML:1.3 0.0000956 1.16 AML other m 2021-04-18T23:00:38.37
ST.GAGG.HHE. ML:1.1 0.00005069999999999999 0.72 AML other m 2021-04-18T23:00:38.34
ST.GAGG.HHN. ML:1.1 0.000054800000000000004 1.12 AML other m 2021-04-18T23:00:38.34
ST.RONC.EHN. ML:1.4 0.00010869999999999999 0.66 AML other m 2021-04-18T23:00:39.55
ST.PANI.EHN. ML:1.0 0.00003635 1.24 AML other m 2021-04-18T23:00:40.87
IV.VOBA.EHE. ML:1.4 0.0000877 1.04 AML other m 2021-04-18T23:00:40.94
IV.VOBA.EHN. ML:1.4 0.00009045 0.14 AML other m 2021-04-18T23:00:41.01
ST.PANI.EHE. ML:1.1 0.0000393 0.98 AML other m 2021-04-18T23:00:41.80
ST.RONC.EHE. ML:1.2 0.00006145 1.34 AML other m 2021-04-18T23:00:41.95
IV.CTI.HHN. ML:1.4 0.000048100000000000004 0.48 AML other m 2021-04-18T23:00:46.60
IV.CTI.HHE. ML:1.4 0.00004835 0.8 AML other m 2021-04-18T23:00:47.48
ST.ZIAN.EHN. ML:1.3 0.000028800000000000002 0.26 AML other m 2021-04-18T23:00:49.12
ST.ZIAN.EHE. ML:1.3 0.000035249999999999996 0.34 AML other m 2021-04-18T23:00:49.23
IV.APPI.EHN. ML:1.4 0.00003594999999999999 0.94 AML other m 2021-04-18T23:00:52.48
IV.ZONE.HHE. ML:0.9 0.00001745 0.92 AML other m 2021-04-18T23:00:52.75
IV.APPI.EHE. ML:1.4 0.00003594999999999999 0.68 AML other m 2021-04-18T23:00:53.24
IV.ZONE.HHN. ML:1.2 0.0000229 1.14 AML other m 2021-04-18T23:00:53.66
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