Earthquake with magnitude of ML 1.6 on date 30-07-2021 and time 22:29:02 (Italy) in region 5 km SE Grosio (SO)

A magnitude ML 1.6 earthquake occured in region: 5 km SE Grosio (SO), on

  • 30-07-2021 20:29:02 (UTC)
  • 30-07-2021 22:29:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.268, 10.322 at 6 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
Grosio SO 5 4443 4443
Grosotto SO 5 1622 6065
Mazzo di Valtellina SO 5 1022 7087
Incudine BS 6 385 7472
Monno BS 6 555 8027
Tovo di Sant'Agata SO 6 628 8655
Vervio SO 6 217 8872
Vezza d'Oglio BS 7 1457 10329
Sondalo SO 7 4136 14465
Lovero SO 8 661 15126
Vione BS 10 691 15817
Edolo BS 10 4572 20389
Sernio SO 10 486 20875
Temù BS 12 1105 21980
Sonico BS 12 1264 23244
Tirano SO 13 9130 32374
Corteno Golgi BS 13 1976 34350
Ponte di Legno BS 15 1729 36079
Villa di Tirano SO 16 3000 39079
Malonno BS 17 3261 42340
Aprica SO 18 1588 43928
Valdisotto SO 19 3556 47484
Bianzone SO 19 1285 48769
Berzo Demo BS 19 1671 50440

Municipalities with at least 50000 inhabitants

An earthquake occurred to
66 Km W of Trento (117317 inhabitants)
81 Km N of Brescia (196480 inhabitants)
81 Km NE of Bergamo (119381 inhabitants)
84 Km W of Bolzano (106441 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.6 2021-07-30
20:29:02
46.268 10.3217 6 2021-07-30
20:48:06
Sala Sismica INGV-Roma 93415611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-30 20:29:02 ± 0.07
Latitude 46.2680 ± 0.0036
Longitude 10.3217 ± 0.0065
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 93415611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 510
Semi-minor axis of confidence ellipse (meter) 333
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) 510
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 30
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
Epicentral distance of station farthest from the epicenter (degree) 0.94519
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 26
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 52
Type of magnitude ML
Reference to an origin 93415611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-30 20:48:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SACS.HHZ. 2021-07-30T20:30:48.06 3.0 undecidable manual Sg 6.49 0
IV.CPGN.EHZ. 2021-07-30T20:30:33.82 3.0 undecidable manual Sg 10.78 0
IV.COR1.EHZ. 2021-07-30T20:29:59.17 3.0 positive manual Pg 5.9 0
IV.EUCT.HNZ. 2021-07-30T20:29:27.22 3.0 undecidable manual P -0.25 0
CH.FUSIO.HHZ. 2021-07-30T20:29:25.59 3.0 negative manual P 0.51 0
OX.MARN.HHZ. 2021-07-30T20:29:21.03 3.0 undecidable manual P 0.8822 1.55 0
IV.CTI.HHZ. 2021-07-30T20:29:21.01 0.6 undecidable manual P 103 0.9452 50 0.44 41
CH.MUGIO.HHZ. 2021-07-30T20:29:21.02 3.0 negative manual P -0.72 0
ST.ZIAN.EHZ. 2021-07-30T20:29:19.46 0.6 undecidable manual P 89 0.858 50 0.39 42
IV.ROVR.HHZ. 2021-07-30T20:29:18.65 0.6 undecidable manual P 140 0.8112 50 0.38 42
SI.KOSI.HHZ. 2021-07-30T20:29:17.38 0.3 undecidable manual P 75 0.7536 50 0.09 69
ST.PANI.EHZ. 2021-07-30T20:29:17.29 0.3 undecidable manual P 107 0.7338 50 0.34 65
IV.MBAL.EHZ. 2021-07-30T20:29:17.11 3.0 undecidable manual P 0.93 0
IV.ZEN8.EHZ. 2021-07-30T20:29:16.03 0.3 undecidable manual P 155 0.6916 50 -0.19 68
ST.DOSS.HHZ. 2021-07-30T20:29:16.94 0.3 undecidable manual P 122 0.715 50 0.31 66
IV.SGAL.EHZ. 2021-07-30T20:29:16.16 0.6 undecidable manual P 181 0.7042 50 -0.29 44
IV.SALO.HHZ. 2021-07-30T20:29:15.84 0.3 undecidable manual P 168 0.6646 50 0.08 70
ST.VARA.EHZ. 2021-07-30T20:29:14.34 0.3 undecidable manual P 138 0.5954 50 -0.23 69
CH.DAVOX.HHZ. 2021-07-30T20:29:14.61 0.3 negative manual P 329 0.5954 50 0.02 72
ST.OZOL.EHZ. 2021-07-30T20:29:13.08 0.3 undecidable manual P 75 0.5216 50 -0.25 70
IV.ZONE.HHZ. 2021-07-30T20:29:13.54 0.3 undecidable manual P 196 0.5234 50 0.18 71
SI.LUSI.HHZ. 2021-07-30T20:29:13.08 0.3 undecidable manual P 125 0.5297 50 -0.38 68
ST.CARE.EHZ. 2021-07-30T20:29:13.80 0.3 undecidable manual S 58 0.3013 99 -0.25 73
IV.MAGA.HHZ. 2021-07-30T20:29:13.26 0.3 undecidable manual P 156 0.5369 50 -0.32 68
ST.GAGG.HHZ. 2021-07-30T20:29:12.48 0.3 undecidable manual P 112 0.4775 50 -0.1 73
IV.BAG8.EHZ. 2021-07-30T20:29:12.00 0.3 undecidable manual P 167 0.456 50 -0.2 71
CH.BERNI.HHZ. 2021-07-30T20:29:11.76 0.1 undecidable manual S 305 0.2518 101 -0.42 95
CH.FUORN.HHZ. 2021-07-30T20:29:10.06 0.3 undecidable manual P 354 0.3543 98 -0.17 73
IV.BORM.HNE. 2021-07-30T20:29:10.20 0.3 undecidable manual S 11 0.205 104 -0.19 75
ST.RONC.EHZ. 2021-07-30T20:29:10.06 0.1 undecidable manual P 144 0.3552 98 -0.19 97
IV.BRMO.HHZ. 2021-07-30T20:29:10.43 0.1 undecidable manual S 10 0.2113 103 -0.19 100
SI.MOSI.HHZ. 2021-07-30T20:29:10.86 0.3 undecidable manual P 24 0.3822 97 0.02 75
IT.BNO.HNE. 2021-07-30T20:29:09.68 0.3 undecidable manual P 184 0.3202 99 0.2 73
CH.BERNI.HHZ. 2021-07-30T20:29:08.33 0.1 undecidable manual P 305 0.2518 101 0.34 96
ST.CARE.EHZ. 2021-07-30T20:29:08.89 0.3 undecidable manual P 58 0.3013 99 -0.18 74
IV.MABI.HHZ. 2021-07-30T20:29:08.07 0.3 undecidable manual P 148 0.2509 101 0.1 76
IV.BRMO.HHZ. 2021-07-30T20:29:07.68 0.1 undecidable manual P 10 0.2113 103 0.58 91
IV.BORM.HNE. 2021-07-30T20:29:07.54 0.3 undecidable manual P 11 0.205 104 0.58 68
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MABI.HHE. ML:1.4 0.00014749301 0.0768 AML other m 2021-07-30T20:29:08.15
ST.RONC.EHE. ML:1.8 0.0002044139 0.1408 AML other m 2021-07-30T20:29:15.21
IV.BRMO.HHE. ML:1.8 0.00041308185 0.0768 AML other m 2021-07-30T20:29:10.62
IV.BRMO.HHN. ML:1.7 0.0003205 0.14 AML other m 2021-07-30T20:29:10.79
IV.MABI.HHN. ML:1.4 0.0001240998 0.064 AML other m 2021-07-30T20:29:11.83
CH.BERNI.HHN. ML:1.5 0.0001665 0.24 AML other m 2021-07-30T20:29:12.70
CH.BERNI.HHE. ML:1.5 0.0001846398 0.1024 AML other m 2021-07-30T20:29:12.10
ST.RONC.EHN. ML:1.9 0.00027797415 0.2048 AML other m 2021-07-30T20:29:15.14
CH.FUORN.HHN. ML:1.3 7.071543E-5 0.192 AML other m 2021-07-30T20:29:15.78
SI.MOSI.HHE. ML:2 0.0003272418 0.3072 AML other m 2021-07-30T20:29:16.81
CH.FUORN.HHE. ML:1.3 6.3974375E-5 0.2304 AML other m 2021-07-30T20:29:16.13
SI.MOSI.HHN. ML:1.9 0.0002427756 0.2816 AML other m 2021-07-30T20:29:17.06
IV.BAG8.EHE. ML:1.9 0.000216 1.78 AML other m 2021-07-30T20:29:18.92
IV.BAG8.EHN. ML:1.8 0.00015240805 0.1536 AML other m 2021-07-30T20:29:18.00
ST.GAGG.HHN. ML:1.5 7.428317E-5 0.2176 AML other m 2021-07-30T20:29:21.23
ST.GAGG.HHE. ML:1.7 0.0001165 0.1 AML other m 2021-07-30T20:29:19.27
IV.ZONE.HHE. ML:1.8 0.000136586115 0.2816 AML other m 2021-07-30T20:29:19.94
ST.OZOL.EHN. ML:1.6 8.0890845E-5 0.32 AML other m 2021-07-30T20:29:21.82
SI.LUSI.HHN. ML:2 0.000202 0.12 AML other m 2021-07-30T20:29:21.34
IV.ZONE.HHN. ML:1.9 0.00015853605 0.1536 AML other m 2021-07-30T20:29:21.93
SI.LUSI.HHE. ML:1.6 8.290229E-5 0.1024 AML other m 2021-07-30T20:29:21.66
ST.OZOL.EHE. ML:1.7 0.00011765 1.52 AML other m 2021-07-30T20:29:21.04
IV.MAGA.HHN. ML:1.8 0.0001375 0.14 AML other m 2021-07-30T20:29:21.74
IV.MAGA.HHE. ML:1.8 0.00012065 0.2 AML other m 2021-07-30T20:29:22.34
CH.DAVOX.HHE. ML:1.7 9.7362635E-5 0.2688 AML other m 2021-07-30T20:29:24.83
IV.SALO.HHE. ML:1.5 4.3589655E-5 0.1536 AML other m 2021-07-30T20:29:25.13
CH.DAVOX.HHN. ML:1.6 7.158629E-5 0.192 AML other m 2021-07-30T20:29:27.01
ST.DOSS.HHE. ML:1.7 6.649039E-5 0.0768 AML other m 2021-07-30T20:29:26.76
ST.DOSS.HNN. ML:1.6 6.144119605E-5 0.2176 AML other m 2021-07-30T20:29:28.52
IV.SGAL.EHN. ML:1.6 5.287615E-5 0.0768 AML other m 2021-07-30T20:29:26.84
IV.SGAL.EHE. ML:1.6 6.17E-5 1.5 AML other m 2021-07-30T20:29:27.79
ST.PANI.EHE. ML:1.5 3.8871665E-5 0.1536 AML other m 2021-07-30T20:29:27.17
ST.DOSS.HHN. ML:1.5 4.506863E-5 0.128 AML other m 2021-07-30T20:29:27.85
ST.PANI.EHN. ML:1.5 4.0669635E-5 0.192 AML other m 2021-07-30T20:29:27.77
IV.SALO.HHN. ML:1.6 5.3E-5 0.3 AML other m 2021-07-30T20:29:28.38
IV.CTI.HHE. ML:1.8 6.722323E-5 0.0768 AML other m 2021-07-30T20:29:33.98
IV.CTI.HHN. ML:2 8.6177665E-5 0.192 AML other m 2021-07-30T20:29:33.98
CH.MUGIO.HHN. ML:1.7 4.985E-5 0.32 AML other m 2021-07-30T20:29:34.13
CH.MUGIO.HHE. ML:1.6 4.0E-5 0.34 AML other m 2021-07-30T20:29:34.69
CH.FUSIO.HHE. ML:1.5 2.2022235E-5 0.1664 AML other m 2021-07-30T20:29:42.06
CH.FUSIO.HHN. ML:1.6 2.575E-5 0.74 AML other m 2021-07-30T20:29:44.12
IV.BAG8.HNE. ML:1.9 0.0002322152 0.1792 AML other m 2021-07-30T20:29:17.91
IV.BAG8.HNN. ML:1.8 0.00017566504 0.128 AML other m 2021-07-30T20:29:18.20
ST.GAGG.HNE. ML:1.5 8.6128925E-5 0.2432 AML other m 2021-07-30T20:29:21.12
ST.GAGG.HNN. ML:1.6 9.7330745E-5 0.1024 AML other m 2021-07-30T20:29:19.27
ST.VARA.EHE. ML:1.6 7.056098E-5 0.2176 AML other m 2021-07-30T20:29:25.05
IV.ZEN8.EHE. ML:1.2 2.4609695E-5 0.2432 AML other m 2021-07-30T20:29:25.92
SI.KOSI.HHE. ML:1.1 1.6630695E-5 0.32 AML other m 2021-07-30T20:29:31.56
SI.KOSI.HHN. ML:1.2 2.0312655E-5 0.3584 AML other m 2021-07-30T20:29:29.47
ST.ZIAN.EHE. ML:1.3 2.1052915E-5 0.1152 AML other m 2021-07-30T20:29:33.15
ST.ZIAN.EHN. ML:1.3 1.9965418E-5 0.0768 AML other m 2021-07-30T20:29:31.89
IV.EUCT.HNE. ML:2.4 0.000125034485 0.0768 AML other m 2021-07-30T20:29:34.50
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