Earthquake with magnitude of ML 1.5 on date 06-09-2020 and time 07:48:49 (UTC) in region 2 km W Buonconvento (SI)

A magnitude ML 1.5 earthquake occured in region: 2 km W Buonconvento (SI), on

  • 06-09-2020 07:48:49 (UTC)
  • 06-09-2020 09:48:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1320, 11.4620 at 5 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
Buonconvento SI 2 3173 3173
Murlo SI 7 2389 5562
Montalcino SI 8 5093 10655
San Giovanni d'Asso SI 11 853 11508
Monteroni d'Arbia SI 12 9088 20596
Asciano SI 14 7118 27714
San Quirico d'Orcia SI 14 2662 30376
Trequanda SI 18 1254 31630
Pienza SI 19 2107 33737
Castiglione d'Orcia SI 19 2346 36083

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km SE of Siena (53903 inhabitants)
50 Km NE of Grosseto (82087 inhabitants)
51 Km SW of Arezzo (99543 inhabitants)
73 Km S of Firenze (382808 inhabitants)
73 Km SE of Scandicci (50609 inhabitants)
75 Km W of Perugia (166134 inhabitants)
88 Km SE of Prato (191150 inhabitants)
95 Km NW of Viterbo (67173 inhabitants)
99 Km SE of Pistoia (90315 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 1.5 2020-09-06
07:48:49
43.1322 11.4615 5 2021-02-26
14:55:55
Bollettino Sismico Italiano INGV 82816941
Reviewed
Rev100
ML 1.6 2020-09-06
07:48:49
43.1467 11.458 7 2020-09-06
07:58:25
Sala Sismica INGV-Roma 82667861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-06 07:48:49 ± 0.08
Latitude 43.1322 ± 0.0045
Longitude 11.4615 ± 0.0062
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82816941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 504
Semi-minor axis of confidence ellipse (meter) 401
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 218
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) 49
Number of associated phases, regardless of their use for origin computation 51
Number of defining phases 32
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.76442
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 82816941
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-11 13:24:03

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 82667861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-06 07:58:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
AC.VLO.HHZ. 2020-09-06T07:50:31.44 3.0 undecidable manual Pn 2.68 0
IV.CSLB.HHZ. 2020-09-06T07:50:27.19 3.0 negative manual Pg 12.2 0
IV.ESML.HHZ. 2020-09-06T07:50:20.42 3.0 negative manual Pn -1.98 0
XK.GIZZ.HHZ. 2020-09-06T07:50:18.69 3.0 negative manual Pn 4.76 0
IV.ECTS.HHZ. 2020-09-06T07:50:17.09 3.0 positive manual Pn -3.16 0
IV.SERS.HHZ. 2020-09-06T07:50:14.78 3.0 undecidable manual Pn -1.92 0
IV.SPS2.HHZ. 2020-09-06T07:50:09.05 3.0 positive manual Pn -2.54 0
IV.ROSPO.HHZ. 2020-09-06T07:50:08.61 3.0 undecidable manual Sn -1.75 0
IV.VVLD.HHZ. 2020-09-06T07:49:52.01 3.0 undecidable manual Sn -2.04 0
IV.CMPR.HHZ. 2020-09-06T07:49:49.70 3.0 undecidable manual Pn -4.1 0
IV.ZONE.HHZ. 2020-09-06T07:49:44.50 3.0 undecidable manual Pg 7.21 0
IV.ROSPO.HHZ. 2020-09-06T07:49:44.24 3.0 undecidable manual Pg 8.57 0
IV.AGLI.HHZ. 2020-09-06T07:49:40.34 3.0 undecidable manual Pg 5.1 0
IV.QLNO.HHZ. 2020-09-06T07:49:36.06 3.0 undecidable manual Pg 1.9 0
IV.IMI.HHZ. 2020-09-06T07:49:36.42 3.0 undecidable manual Pn 0.06 0
IV.CERA.HHZ. 2020-09-06T07:49:32.35 3.0 negative manual Pn 0.33 0
IV.BRSN.EHZ. 2020-09-06T07:49:27.31 3.0 undecidable manual S -7.2 0
IV.SBPO.HNZ. 2020-09-06T07:49:25.44 3.0 negative manual Pg -0.22 0
IV.MNTT.EHZ. 2020-09-06T07:49:17.96 3.0 positive manual Pn -1.93 0
IV.PARC.HHZ. 2020-09-06T07:49:05.03 0.3 undecidable manual P 47 84.8484 50 -0.03 70
IV.ASQU.HHE. 2020-09-06T07:49:04.40 0.3 undecidable manual P 20 78.2661 50 0.36 66
IV.ATLO.EHE. 2020-09-06T07:49:04.20 0.1 undecidable manual P 75 79.0653 50 0.03 94
IV.MAON.HHZ. 2020-09-06T07:49:04.87 0.1 undecidable manual P 199 82.5507 50 0.17 91
IV.RINC.HHN. 2020-09-06T07:49:04.80 0.1 undecidable manual P 8 84.4488 50 -0.19 90
IV.RUFI.EHE. 2020-09-06T07:49:03.64 0.1 undecidable manual P 3 78.366 50 -0.42 87
IV.RIBO.EHZ.01 2020-09-06T07:49:03.69 0.6 undecidable manual S 239 39.3273 97 0.2 49
IV.MCIV.CHZ. 2020-09-06T07:49:03.96 0.6 undecidable manual S 156 42.9237 96 -0.78 41
IV.MAGO.CHZ. 2020-09-06T07:49:02.10 0.3 undecidable manual P 284 66.8775 50 -0.17 70
IV.CRE.HHZ. 2020-09-06T07:49:02.23 0.1 undecidable manual P 36 66.8775 50 -0.06 96
TV.SF01.EHZ. 2020-09-06T07:49:02.20 0.3 undecidable manual S 167 36.4413 97 -0.32 72
IV.ATMI.HHZ. 2020-09-06T07:49:02.67 0.3 undecidable manual P 71 68.9754 50 0.07 72
TV.SF04.EHZ. 2020-09-06T07:49:02.23 0.3 undecidable manual S 154 36.6411 97 -0.34 72
IV.ATMC.EHZ. 2020-09-06T07:49:02.43 0.3 undecidable manual P 59 68.5758 50 -0.12 71
TV.SF13.HHZ. 2020-09-06T07:49:02.34 0.3 undecidable manual S 160 37.1295 97 -0.39 71
IV.MGAB.HHZ. 2020-09-06T07:49:01.32 0.6 undecidable manual P 115 58.0974 50 0.39 46
TV.SF11.HHZ. 2020-09-06T07:49:01.49 0.3 undecidable manual S 149 34.1436 98 -0.22 74
IV.CASP.HHZ. 2020-09-06T07:49:01.42 0.6 undecidable manual P 232 61.494 50 -0.03 49
IV.ARCI.HHZ. 2020-09-06T07:49:00.70 0.3 undecidable manual S 178 31.1466 99 0.03 78
IV.OSSC.HNZ. 2020-09-06T07:48:59.05 1.0 undecidable manual P 338 46.8198 96 -0.12 25
IV.FROS.CHZ. 2020-09-06T07:48:58.45 0.3 undecidable manual S 289 26.1516 100 -0.53 70
IV.MCIV.CHZ. 2020-09-06T07:48:58.66 0.6 undecidable manual P 156 42.9237 96 0.26 48
TV.SF14.HHZ. 2020-09-06T07:48:58.82 0.3 undecidable manual P 163 43.623 96 0.28 72
IV.TRIF.CHZ. 2020-09-06T07:48:58.56 0.3 undecidable manual P 268 45.3213 96 -0.31 71
IV.CSNT.HHZ. 2020-09-06T07:48:58.17 0.6 undecidable manual P 340 40.2264 97 0.29 48
TV.SF04.EHZ. 2020-09-06T07:48:57.37 0.6 undecidable manual P 154 36.6411 97 0.22 49
IV.RIBO.EHZ.01 2020-09-06T07:48:57.80 0.1 undecidable manual P 239 39.3273 97 0.12 100
TV.SF13.HHZ. 2020-09-06T07:48:57.44 0.3 undecidable manual P 160 37.1295 97 0.2 74
TV.SF11.HHZ. 2020-09-06T07:48:57.13 0.6 undecidable manual P 149 34.1436 98 0.47 47
TV.SF01.EHZ. 2020-09-06T07:48:57.29 0.3 undecidable manual P 167 36.4413 97 0.17 75
IV.ARCI.HHZ. 2020-09-06T07:48:56.75 0.3 undecidable manual P 178 31.1466 99 0.69 65
IV.FROS.CHZ. 2020-09-06T07:48:55.37 0.1 undecidable manual P 289 26.1516 100 0.29 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FROS.CHE. ML:1.9 0.0004425 0.48 AML other m 2020-09-06T07:49:00.55
IV.ARCI.HNN. ML:1.6 0.00018494279999999998 0.1216 AML other m 2020-09-06T07:49:00.97
IV.ARCI.HHN. ML:1.3 0.0000885 1.54 AML other m 2020-09-06T07:49:01.97
IV.ARCI.HHE. ML:1.4 0.0001275 0.4 AML other m 2020-09-06T07:49:01.05
IV.CSNT.HHE. ML:1.3 0.0000691 1.24 AML other m 2020-09-06T07:49:02.23
TV.SF01.EHE. ML:1.8 0.0002605 0.12 AML other m 2020-09-06T07:49:02.32
TV.SF01.EHN. ML:2.0 0.00036650000000000007 0.14 AML other m 2020-09-06T07:49:02.39
IV.ARCI.HNE. ML:1.5 0.0001451925 1.04 AML other m 2020-09-06T07:49:02.05
IV.CSNT.HHN. ML:1.4 0.0000838 0.1 AML other m 2020-09-06T07:49:02.56
TV.SF04.EHN. ML:1.8 0.0002545 0.58 AML other m 2020-09-06T07:49:03.29
TV.SF04.EHE. ML:1.8 0.00022600000000000002 0.44 AML other m 2020-09-06T07:49:04.74
IV.CASP.HHE. ML:1.0 0.000020029878000000003 0.2368 AML other m 2020-09-06T07:49:11.83
IV.CASP.HHN. ML:1.2 0.00003165574 0.3008 AML other m 2020-09-06T07:49:12.25
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