Earthquake with magnitude of ML 0.8 on date 25-12-2021 and time 18:56:41 (Italy) in region 3 km SE Arco (TN)

A magnitude ML 0.8 earthquake occured in region: 3 km SE Arco (TN), on

  • 25-12-2021 17:56:41 (UTC)
  • 25-12-2021 18:56:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.9030, 10.9150 at 13 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Arco TN 3 17526 17526
Ronzo-Chienis TN 3 976 18502
Nago-Torbole TN 5 2867 21369
Riva del Garda TN 6 16926 38295
Tenno TN 7 2069 40364
Dro TN 7 4944 45308
Mori TN 7 9678 54986
Isera TN 8 2735 57721
Drena TN 8 570 58291
Nogaredo TN 9 2065 60356
Villa Lagarina TN 9 3778 64134
Brentonico TN 10 4015 68149
Rovereto TN 10 39289 107438
Pomarolo TN 10 2452 109890
Cavedine TN 11 2987 112877
Volano TN 12 3169 116046
Nomi TN 13 1398 117444
Fiavè TN 13 1117 118561
Trambileno TN 13 1452 120013
Limone sul Garda BS 14 1181 121194
Ledro TN 14 5395 126589
Calliano TN 14 1807 128396
Madruzzo TN 15 2884 131280
Cimone TN 15 728 132008
Comano Terme TN 15 2956 134964
Bleggio Superiore TN 15 1568 136532
Besenello TN 16 2654 139186
Aldeno TN 16 3059 142245
Stenico TN 17 1170 143415
Garniga Terme TN 18 388 143803
Malcesine VR 18 3736 147539
Ala TN 18 8913 156452
Terragnolo TN 19 716 157168
Avio TN 19 4133 161301
San Lorenzo Dorsino TN 19 1599 162900
Tremosine sul Garda BS 20 2100 165000
Borgo Lares TN 20 698 165698
Tre Ville TN 20 1463 167161
Folgaria TN 20 3191 170352

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km SW of Trento (117317 inhabitants)
52 Km N of Verona (258765 inhabitants)
63 Km NW of Vicenza (112953 inhabitants)
67 Km NE of Brescia (196480 inhabitants)
75 Km SW of Bolzano (106441 inhabitants)
93 Km NW of Padova (210401 inhabitants)
99 Km E of Bergamo (119381 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 0.8 2021-12-25
17:56:41
45.903 10.9148 13 2021-12-25
18:02:09
Sala Sismica INGV-Roma 98974491
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-25 17:56:41 ± 0.15
Latitude 45.9030 ± 0.0063
Longitude 10.9148 ± 0.0090
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98974491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 820
Semi-minor axis of confidence ellipse (meter) 124
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 133
Circular confidence region, given by single value of horizontal uncertainty (meter) 820.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.06025
Epicentral distance of station farthest from the epicenter (degree) 0.23652
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 98974491
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-25 18:02:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MAGA.HHE. 2021-12-25T17:56:50.47 0.3 undecidable manual S 237 26.2515 99 -0.17 73
IV.MBAL.EHZ. 2021-12-25T17:56:49.40 0.6 undecidable manual S 191 23.1546 102 -0.43 45
ST.DOSS.HHZ. 2021-12-25T17:56:49.00 0.6 undecidable manual S 97 21.2676 104 -0.32 47
ST.GAGG.HHZ. 2021-12-25T17:56:48.80 0.6 undecidable manual S 10 20.2686 105 -0.28 49
ST.DOSS.HHZ. 2021-12-25T17:56:46.10 0.3 positive manual P 97 21.2676 104 0.24 74
ST.VARA.EHZ. 2021-12-25T17:56:46.60 0.3 undecidable manual S 189 8.6802 138 0.21 76
IV.MBAL.EHZ. 2021-12-25T17:56:46.20 0.6 positive manual P 191 23.1546 102 0.05 51
IV.MAGA.HHE. 2021-12-25T17:56:46.68 0.3 undecidable manual P 237 26.2515 99 0.06 75
ST.GAGG.HHZ. 2021-12-25T17:56:45.90 1.0 positive manual P 10 20.2686 105 0.18 25
SI.LUSI.HHZ. 2021-12-25T17:56:45.90 0.3 undecidable manual S 19 6.6933 146 -0.16 76
SI.LUSI.HHZ. 2021-12-25T17:56:44.19 0.1 positive manual P 19 6.6933 146 0.22 100
ST.VARA.EHZ. 2021-12-25T17:56:44.51 1.0 positive manual P 189 8.6802 138 0.35 24
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
SI.LUSI.HHE. ML:0.8 0.00007595 0.46 AML other m 2021-12-25T17:56:46.36
SI.LUSI.HHN. ML:0.9 0.00009259999999999999 0.42 AML other m 2021-12-25T17:56:47.38
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