Earthquake with magnitude of ML 1.4 on date 29-06-2020 and time 18:15:00 (UTC) in region 2 km N Montalcino (SI)

A magnitude ML 1.4 earthquake occured in region: 2 km N Montalcino (SI), on

  • 29-06-2020 18:15:00 (UTC)
  • 29-06-2020 20:15:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.08, 11.49 at 8 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Montalcino SI 2 5093 5093
Buonconvento SI 7 3173 8266
San Quirico d'Orcia SI 9 2662 10928
San Giovanni d'Asso SI 12 853 11781
Castiglione d'Orcia SI 13 2346 14127
Murlo SI 13 2389 16516
Pienza SI 15 2107 18623
Seggiano GR 17 961 19584
Monteroni d'Arbia SI 18 9088 28672
Asciano SI 19 7118 35790
Trequanda SI 19 1254 37044
Civitella Paganico GR 19 3154 40198

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km SE of Siena (53903 inhabitants)
47 Km NE of Grosseto (82087 inhabitants)
54 Km SW of Arezzo (99543 inhabitants)
73 Km W of Perugia (166134 inhabitants)
80 Km S of Firenze (382808 inhabitants)
80 Km SE of Scandicci (50609 inhabitants)
89 Km NW of Viterbo (67173 inhabitants)
95 Km SE of Prato (191150 inhabitants)
99 Km W of Foligno (57155 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 2020-06-29
18:15:00
43.08 11.49 8 2020-11-19
12:37:01
Bollettino Sismico Italiano INGV 82958781
Reviewed
Rev100
ML 1.4 2020-06-29
18:15:00
43.1 11.52 1 2020-06-29
18:25:30
Sala Sismica INGV-Roma 80625361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-29 18:15:00 ± 0.16
Latitude 43.08 ± 0.01
Longitude 11.49 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82958781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 831
Semi-minor axis of confidence ellipse (meter) 820
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 208
Circular confidence region, given by single value of horizontal uncertainty (meter) 830
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.45
Epicentral distance of station closest to the epicenter (degree) 0.24731
Epicentral distance of station farthest from the epicenter (degree) 0.62953
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 80625361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-29 18:25:30

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 82958781
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-16 16:44:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ATMC.EHN. 2020-06-29T18:15:22.81 0.3 undecidable manual S 54 0.6295 50 0.74 60
IV.ATVA.EHE. 2020-06-29T18:15:21.11 0.6 undecidable manual S 70 0.6106 50 -0.43 45
IV.RIBO.EHZ.01 2020-06-29T18:15:14.10 0.3 undecidable manual S 249 0.3507 50 0.27 73
IV.CSNT.HHZ. 2020-06-29T18:15:14.82 0.3 undecidable manual S 340 0.4245 50 -1.18 51
IV.ATMC.EHN. 2020-06-29T18:15:13.06 0.3 undecidable manual P 54 0.6295 50 0.21 70
TV.SF14.HHE. 2020-06-29T18:15:12.17 0.6 undecidable manual S 165 0.3318 50 -1.1 36
IV.ATVA.EHE. 2020-06-29T18:15:12.38 0.3 undecidable manual P 70 0.6106 50 -0.16 71
IV.FROS.CHZ. 2020-06-29T18:15:11.00 0.3 undecidable manual S 299 0.2806 104 -0.41 72
TV.SF03.EHN. 2020-06-29T18:15:11.80 0.6 undecidable manual S 153 0.3067 103 -0.57 46
TV.SF04.EHZ. 2020-06-29T18:15:10.41 0.1 undecidable manual S 153 0.2689 105 -0.56 93
TV.SF13.HHE. 2020-06-29T18:15:10.61 0.3 undecidable manual S 160 0.2725 105 -0.5 71
TV.SF01.EHZ. 2020-06-29T18:15:10.53 0.1 undecidable manual S 169 0.268 105 -0.41 97
TV.SF11.HHE. 2020-06-29T18:15:09.72 0.3 undecidable manual S 147 0.2473 106 -0.43 72
TV.SF14.HHE. 2020-06-29T18:15:08.06 0.1 undecidable manual P 165 0.3318 50 0.29 98
IV.RIBO.EHZ.01 2020-06-29T18:15:08.48 0.1 undecidable manual P 249 0.3507 50 0.38 96
IV.CSNT.HHZ. 2020-06-29T18:15:08.83 0.1 undecidable manual P 340 0.4245 50 -0.52 91
TV.SF13.HHE. 2020-06-29T18:15:07.05 0.1 undecidable manual P 160 0.2725 105 0.52 94
TV.SF03.EHN. 2020-06-29T18:15:07.58 0.1 undecidable manual P 153 0.3067 103 0.33 98
IV.MCIV.CHZ. 2020-06-29T18:15:07.85 0.1 undecidable manual P 156 0.3256 50 0.2 100
TV.SF11.HHE. 2020-06-29T18:15:06.45 0.1 undecidable manual P 147 0.2473 106 0.48 96
TV.SF01.EHZ. 2020-06-29T18:15:06.83 0.1 undecidable manual P 169 0.268 105 0.4 97
TV.SF04.EHZ. 2020-06-29T18:15:06.94 0.1 positive manual P 153 0.2689 105 0.5 95
IV.FROS.CHZ. 2020-06-29T18:15:06.95 0.3 undecidable manual P 299 0.2806 104 0.26 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
TV.SF04.EHN. ML:1.5 0.000164 0.16 AML other m 2020-06-29T18:15:10.96
TV.SF04.EHE. ML:1.6 0.000211 0.64 AML other m 2020-06-29T18:15:12.59
TV.SF01.EHN. ML:1.4 0.0001275 1.22 AML other m 2020-06-29T18:15:12.11
TV.SF01.EHE. ML:1.4 0.00011765 0.42 AML other m 2020-06-29T18:15:12.69
IV.CSNT.HHN. ML:1.2 4.555E-5 0.36 AML other m 2020-06-29T18:15:15.73
IV.CSNT.HHE. ML:1.4 6.585E-5 0.34 AML other m 2020-06-29T18:15:15.71
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