Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 25-10-2021 and time 12:17:21 (Italy) in region 2 km NW Aldino (BZ)

A magnitude ML 1.0 earthquake occured in region: 2 km NW Aldino (BZ), on

  • 25-10-2021 10:17:21 (UTC)
  • 25-10-2021 12:17:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.3790, 11.3370 at 8 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.

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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
Aldino BZ 2 1670 1670
Bronzolo BZ 3 2751 4421
Ora BZ 4 3648 8069
Vadena BZ 5 1038 9107
Laives BZ 5 17700 26807
Montagna BZ 6 1641 28448
Trodena nel parco naturale BZ 6 1026 29474
Caldaro sulla strada del vino BZ 8 7908 37382
Nova Ponente BZ 8 3883 41265
Termeno sulla strada del vino BZ 8 3348 44613
Egna BZ 9 5232 49845
Appiano sulla strada del vino BZ 10 14775 64620
Cortaccia sulla strada del vino BZ 11 2225 66845
Anterivo BZ 11 395 67240
Daiano TN 12 647 67887
Varena TN 12 850 68737
Carano TN 12 1098 69835
Ruffrè-Mendola TN 13 424 70259
Capriana TN 13 588 70847
Castello-Molina di Fiemme TN 13 2286 73133
Bolzano BZ 14 106441 179574
Cavalese TN 14 4100 183674
Cornedo all'Isarco BZ 14 3388 187062
Magrè sulla strada del vino BZ 14 1279 188341
Valfloriana TN 14 504 188845
Cortina sulla strada del vino BZ 15 642 189487
Ronzone TN 15 424 189911
Amblar-Don TN 15 521 190432
Cavareno TN 16 1061 191493
Sarnonico TN 16 761 192254
Malosco TN 16 464 192718
Nova Levante BZ 16 1925 194643
Romeno TN 17 1385 196028
Tesero TN 17 2929 198957
Fondo TN 17 1448 200405
Sover TN 18 838 201243
Sfruz TN 18 334 201577
San Genesio Atesino BZ 18 3047 204624
Andriano BZ 18 1023 205647
Tires BZ 18 978 206625
Terlano BZ 18 4365 210990
Salorno BZ 18 3758 214748
Brez TN 19 741 215489
Dambel TN 19 435 215924
Castelfondo TN 19 625 216549
Panchià TN 19 825 217374
Roverè della Luna TN 19 1636 219010
Cloz TN 20 701 219711

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km S of Bolzano (106441 inhabitants)
38 Km NE of Trento (117317 inhabitants)
94 Km N of Vicenza (112953 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
Reviewed
Rev100 		ML 1.0 2021-10-25
10:17:21		 46.3788 11.3367 8 2021-10-25
10:23:33		 Sala Sismica INGV-Roma 96978081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-25 10:17:21 ± 0.05
Latitude 46.3788 ± 0.0036
Longitude 11.3367 ± 0.0039
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96978081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 383
Semi-minor axis of confidence ellipse (meter) 256
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 22
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 57
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.08903
Epicentral distance of station farthest from the epicenter (degree) 0.67179
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 96978081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-25 10:23:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MABI.HHZ. 2021-10-25T10:17:35.05 1.0 positive manual P 241 72.6717 50 0.85 18
OX.VARN.HHE. 2021-10-25T10:17:34.02 1.0 undecidable manual P 126 72.9714 50 -0.23 22
IV.BRMO.HHE. 2021-10-25T10:17:34.74 0.3 undecidable manual P 279 74.5698 50 0.25 64
SI.MOSI.HHE. 2021-10-25T10:17:33.52 1.0 undecidable manual P 294 65.5899 50 0.4 21
ST.DOSS.HHE. 2021-10-25T10:17:31.63 0.3 undecidable manual P 192 56.3991 50 -0.07 69
SI.LUSI.HHZ. 2021-10-25T10:17:31.79 0.6 negative manual P 213 55.5 50 0.24 44
OX.AGOR.HHE. 2021-10-25T10:17:31.69 0.3 undecidable manual P 101 55.5 50 0.14 68
IV.BRES.EHE. 2021-10-25T10:17:30.18 0.3 undecidable manual P 40 46.7199 50 -0.02 71
ST.CARE.EHZ. 2021-10-25T10:17:30.52 1.0 positive manual P 276 49.4172 50 -0.1 23
IV.CTI.HHE. 2021-10-25T10:17:29.44 0.6 undecidable manual P 147 43.8228 50 -0.32 44
ST.GAGG.HHE. 2021-10-25T10:17:29.85 0.6 undecidable manual P 222 43.7229 50 0.1 47
ST.OZOL.EHZ. 2021-10-25T10:17:29.08 0.3 undecidable manual S 277 21.9669 110 -0.26 70
IT.VALS.HNE. 2021-10-25T10:17:28.37 0.6 undecidable manual P 97 35.8419 50 -0.16 47
SI.ABSI.HHZ. 2021-10-25T10:17:28.71 0.3 undecidable manual P 358 38.8278 50 -0.28 68
ST.PANI.EHZ. 2021-10-25T10:17:28.32 0.6 undecidable manual P 180 36.4413 50 -0.31 45
ST.ZIAN.EHZ. 2021-10-25T10:17:28.91 0.1 undecidable manual S 123 20.7681 111 -0.03 98
IV.APPI.EHZ. 2021-10-25T10:17:26.64 0.3 undecidable manual S 323 13.875 120 -0.14 73
ST.ZIAN.EHZ. 2021-10-25T10:17:25.78 0.3 undecidable manual P 123 20.7681 111 0.11 73
SI.KOSI.HHZ. 2021-10-25T10:17:25.71 0.3 undecidable manual S 19 9.879 130 0.06 75
ST.OZOL.EHZ. 2021-10-25T10:17:25.99 0.3 undecidable manual P 277 21.9669 110 0.08 73
IV.APPI.EHZ. 2021-10-25T10:17:24.44 0.1 undecidable manual P 323 13.875 120 0.01 100
SI.KOSI.HHZ. 2021-10-25T10:17:23.92 0.1 undecidable manual P 19 9.879 130 0.15 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.APPI.EHN. ML:0.9 0.00009395369000000001 0.224 AML other m 2021-10-25T10:17:26.83
IV.APPI.EHE. ML:1.1 0.0001249 1.7 AML other m 2021-10-25T10:17:26.92
ST.ZIAN.EHE. ML:1.3 0.00013783265 0.4032 AML other m 2021-10-25T10:17:29.72
ST.OZOL.EHE. ML:1.1 0.000094574695 0.4224 AML other m 2021-10-25T10:17:30.33
ST.ZIAN.EHN. ML:1.1 0.000084939675 0.3264 AML other m 2021-10-25T10:17:30.04
ST.OZOL.EHN. ML:0.9 0.000059092415000000005 0.48 AML other m 2021-10-25T10:17:32.38
SI.KOSI.HHN. ML:1.0 0.00016198925 0.1408 AML other m 2021-10-25T10:17:25.80
ST.ZIAN.HNE. ML:1.1 0.00009485409 0.3456 AML other m 2021-10-25T10:17:30.03
ST.ZIAN.HNN. ML:1.3 0.00014586322000000002 0.4032 AML other m 2021-10-25T10:17:29.72
SI.ABSI.HHN. ML:0.7 0.000019815989999999997 0.48 AML other m 2021-10-25T10:17:37.28
SI.ABSI.HHE. ML:0.6 0.000016123471 0.6592 AML other m 2021-10-25T10:17:41.30
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