Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 09-12-2020 and time 06:15:58 (Italy) in region 4 km E Ala (TN)

A magnitude ML 1.4 earthquake occured in region: 4 km E Ala (TN), on

  • 09-12-2020 05:15:58 (UTC)
  • 09-12-2020 06:15:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.7480, 11.0530 at 9 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 4 8913 8913
Vallarsa TN 7 1395 10308
Avio TN 9 4133 14441
Brentonico TN 11 4015 18456
Erbezzo VR 12 740 19196
Mori TN 13 9678 28874
Trambileno TN 14 1452 30326
Bosco Chiesanuova VR 14 3600 33926
Recoaro Terme VI 14 6453 40379
Sant'Anna d'Alfaedo VR 15 2553 42932
Rovereto TN 16 39289 82221
Brentino Belluno VR 16 1395 83616
Isera TN 16 2735 86351
Velo Veronese VR 16 770 87121
Valli del Pasubio VI 16 3242 90363
Selva di Progno VR 16 933 91296
Terragnolo TN 17 716 92012
Posina VI 17 566 92578
Roverè Veronese VR 17 2115 94693
Ferrara di Monte Baldo VR 17 226 94919
Ronzo-Chienis TN 18 976 95895
Nogaredo TN 19 2065 97960
Villa Lagarina TN 19 3778 101738
Volano TN 19 3169 104907
Malcesine VR 19 3736 108643
Cerro Veronese VR 19 2471 111114
Laghi VI 19 133 111247
Nago-Torbole TN 19 2867 114114
Crespadoro VI 20 1330 115444
Pomarolo TN 20 2452 117896

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km N of Verona (258765 inhabitants)
36 Km S of Trento (117317 inhabitants)
44 Km W of Vicenza (112953 inhabitants)
69 Km E of Brescia (196480 inhabitants)
74 Km W of Padova (210401 inhabitants)
87 Km S of Bolzano (106441 inhabitants)
93 Km W of Treviso (83731 inhabitants)
95 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 1.4 2020-12-09
05:15:58		 45.7477 11.053 9 2021-02-26
14:56:19		 Bollettino Sismico Italiano INGV 87261671
Reviewed
Rev100 		ML 1.3 2020-12-09
05:15:58		 45.7497 11.0593 9 2020-12-09
05:24:51		 Sala Sismica INGV-Roma 85308331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-09 05:15:58 ± 0.09
Latitude 45.7477 ± 0.0045
Longitude 11.0530 ± 0.0064
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87261671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 504
Semi-minor axis of confidence ellipse (meter) 309
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 76
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.93529
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 87261671
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-18 01:18:44

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 85308331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-09 05:24:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
SI.MOSI.HHZ. 2020-12-09T05:16:17.15 0.3 undecidable manual P 338 103.8183 50 0.7 55
IV.BOZZ.EHZ. 2020-12-09T05:16:14.69 3.0 positive manual P 0.13 0
SI.KOSI.HHZ. 2020-12-09T05:16:13.49 0.6 undecidable manual P 17 83.1501 50 0.22 44
IV.APPI.EHZ. 2020-12-09T05:16:13.55 0.3 undecidable manual P 9 82.1511 50 0.43 63
ST.RONC.HNE. 2020-12-09T05:16:12.44 0.6 undecidable manual S 308 42.0246 50 -0.48 45
ST.ZIAN.EHZ. 2020-12-09T05:16:11.84 0.3 undecidable manual P 34 70.5738 50 0.51 63
IV.MAGA.HHZ. 2020-12-09T05:16:09.67 0.6 undecidable manual S 275 32.9448 50 -0.83 40
IV.TREG.HNE. 2020-12-09T05:16:08.03 0.6 undecidable manual S 161 26.2515 109 -0.36 47
SI.LUSI.HHZ. 2020-12-09T05:16:07.40 0.3 undecidable manual S 340 24.9528 110 -0.56 67
OX.BALD.HHE. 2020-12-09T05:16:06.16 0.3 undecidable manual S 249 19.5693 115 -0.04 76
ST.RONC.HNE. 2020-12-09T05:16:06.63 0.3 undecidable manual P 308 42.0246 50 -0.3 70
ST.PANI.EHZ. 2020-12-09T05:16:06.41 0.3 undecidable manual P 33 39.9267 50 -0.2 71
IV.MAGA.HHZ. 2020-12-09T05:16:05.41 0.3 positive manual P 275 32.9448 50 -0.12 73
IV.MBAL.EHZ. 2020-12-09T05:16:05.09 0.3 undecidable manual S 250 16.0728 119 -0.03 77
OX.MARN.HHE. 2020-12-09T05:16:05.20 0.3 undecidable manual S 135 17.1717 117 -0.29 73
ST.DOSS.HHZ. 2020-12-09T05:16:05.34 0.3 undecidable manual S 35 18.0708 116 -0.42 71
ST.VARA.EHZ. 2020-12-09T05:16:04.92 0.3 undecidable manual S 306 14.874 121 0.14 75
IV.TREG.HNE. 2020-12-09T05:16:04.19 0.3 undecidable manual P 161 26.2515 109 -0.13 74
OX.BALD.HHE. 2020-12-09T05:16:03.39 0.3 undecidable manual P 249 19.5693 115 0.34 72
SI.LUSI.HHZ. 2020-12-09T05:16:03.93 0.1 undecidable manual P 340 24.9528 110 -0.14 99
ST.DOSS.HHZ. 2020-12-09T05:16:02.94 0.1 undecidable manual P 35 18.0708 116 0.14 100
ST.VARA.EHZ. 2020-12-09T05:16:02.61 0.1 undecidable manual P 306 14.874 121 0.37 96
IV.MBAL.EHZ. 2020-12-09T05:16:02.67 0.1 undecidable manual P 250 16.0728 119 0.24 98
OX.MARN.HHE. 2020-12-09T05:16:02.80 0.1 undecidable manual P 135 17.1717 117 0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
ST.VARA.EHE. ML:1.7 0.00057051925 0.0768 AML other m 2020-12-09T05:16:05.14
ST.VARA.HNE. ML:1.6 0.00037709804999999994 0.08 AML other m 2020-12-09T05:16:05.09
ST.VARA.EHN. ML:1.6 0.0004469569 0.0992 AML other m 2020-12-09T05:16:05.09
ST.VARA.HNN. ML:1.7 0.0005751220500000001 0.0768 AML other m 2020-12-09T05:16:05.14
IV.MBAL.HNE. ML:1.8 0.0005770499499999999 0.0992 AML other m 2020-12-09T05:16:05.33
IV.MBAL.EHE. ML:1.6 0.00038214590000000006 0.1024 AML other m 2020-12-09T05:16:05.33
IV.MBAL.EHN. ML:1.7 0.00052750435 0.1184 AML other m 2020-12-09T05:16:05.33
ST.DOSS.HHN. ML:1.1 0.00009858801 0.0992 AML other m 2020-12-09T05:16:05.59
IV.MBAL.HNN. ML:1.5 0.00030578645 0.08 AML other m 2020-12-09T05:16:05.63
ST.DOSS.HNN. ML:1.1 0.00010696903999999999 0.2208 AML other m 2020-12-09T05:16:06.06
ST.DOSS.HHE. ML:1.1 0.00011376667000000001 0.2208 AML other m 2020-12-09T05:16:06.17
ST.DOSS.HNE. ML:1.0 0.00009216717 0.2208 AML other m 2020-12-09T05:16:06.45
SI.LUSI.HHE. ML:1.0 0.00006477751 0.1408 AML other m 2020-12-09T05:16:07.69
SI.LUSI.HHN. ML:1.2 0.00010240505 1.84 AML other m 2020-12-09T05:16:08.07
IV.MAGA.HHN. ML:0.8 0.000032143915 0.16 AML other m 2020-12-09T05:16:10.77
IV.APPI.EHN. ML:1.0 0.000016746414 0.2208 AML other m 2020-12-09T05:16:23.95
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