Earthquake with magnitude of ML 1.3 on date 06-10-2019 and time 15:39:02 (Italy) in region 3 km NE Piancastagnaio (SI)

A magnitude ML 1.3 earthquake occured in region: 3 km NE Piancastagnaio (SI), on

  • 06-10-2019 13:39:02 (UTC)
  • 06-10-2019 15:39:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.87, 11.71 at 9 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
Piancastagnaio SI 3 4230 4230
Abbadia San Salvatore SI 3 6444 10674
Radicofani SI 5 1097 11771
Castell'Azzara GR 11 1476 13247
Santa Fiora GR 11 2622 15869
San Casciano dei Bagni SI 13 1632 17501
Seggiano GR 14 961 18462
Arcidosso GR 14 4285 22747
Castel del Piano GR 15 4690 27437
Proceno VT 16 557 27994
Castiglione d'Orcia SI 17 2346 30340
Sarteano SI 18 4717 35057
Cetona SI 18 2755 37812
Acquapendente VT 19 5506 43318
Roccalbegna GR 19 1044 44362

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km E of Grosseto (82087 inhabitants)
59 Km SE of Siena (53903 inhabitants)
60 Km NW of Viterbo (67173 inhabitants)
61 Km W of Perugia (166134 inhabitants)
68 Km S of Arezzo (99543 inhabitants)
81 Km W of Foligno (57155 inhabitants)
84 Km W of Terni (111501 inhabitants)
87 Km N of Civitavecchia (52991 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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
Rev 100 ML 1.3 2019-10-06
13:39:02
42.87 11.71 9 2019-10-06
13:47:29
Sala Sismica INGV-Roma 73084281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-06 13:39:02 ± 0.24
Latitude 42.87 ± 0.02
Longitude 11.71 ± 0.02
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73084281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1653
Semi-minor axis of confidence ellipse (meter) 1382
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 339
Circular confidence region, given by single value of horizontal uncertainty (meter) 1650
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 178
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.29408
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 73084281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-06 13:47:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
CH.MUGIO.HHZ. 2019-10-06T13:40:59.24 3.0 undecidable manual Sg 16.190001 0
IV.VARE.HHZ. 2019-10-06T13:40:55.21 3.0 undecidable manual Sg 10.48 0
IV.CMDO.HHZ. 2019-10-06T13:40:45.59 3.0 positive manual Pg 19.91 0
IV.MILN.HHZ. 2019-10-06T13:40:38.37 3.0 undecidable manual Sg 5.98 0
IV.AGLI.HHZ. 2019-10-06T13:40:23.70 3.0 undecidable manual Sg 4.98 0
IV.SBPO.HNZ. 2019-10-06T13:40:11.64 3.0 undecidable manual Sg 2.23 0
IV.PTRP.HHZ. 2019-10-06T13:40:09.30 3.0 undecidable manual Pn 6.72 0
CH.MUGIO.HHZ. 2019-10-06T13:40:05.52 3.0 undecidable manual Pg 6.67 0
IV.OVO.HHZ. 2019-10-06T13:39:56.13 3.0 positive manual Pg 9.19 0
IT.LRNO.HNZ. 2019-10-06T13:39:42.47 3.0 undecidable manual Pn -0.61 0
IV.SAMA.HHZ. 2019-10-06T13:39:42.29 3.0 undecidable manual S -1.29 0
IV.FIR.HHZ. 2019-10-06T13:39:36.71 3.0 undecidable manual S -1.03 0
IV.PE3.EHZ. 2019-10-06T13:39:32.57 3.0 undecidable manual S -3.18 0
IV.ARRO.EHZ. 2019-10-06T13:39:32.15 3.0 undecidable manual S 3.43 0
IV.NARO.HHZ. 2019-10-06T13:39:31.55 3.0 undecidable manual S -2.94 0
IV.CPGN.EHZ. 2019-10-06T13:39:20.20 3.0 undecidable manual P -1.62 0
IV.MGAB.HHZ. 2019-10-06T13:39:13.42 0.6 undecidable manual S 82 0.2941 50 -0.49 46
IV.LATE.HHZ. 2019-10-06T13:39:13.10 0.6 undecidable manual S 166 0.2662 50 0.02 52
IV.MGAB.HHZ. 2019-10-06T13:39:09.03 0.6 undecidable manual P 82 0.2941 50 -0.01 51
IV.ARCI.HHZ. 2019-10-06T13:39:09.88 0.3 undecidable manual S 264 0.1763 116 -0.04 79
IV.LATE.HHZ. 2019-10-06T13:39:08.75 0.1 negative manual P 166 0.2662 50 0.19 100
TV.SF01.EHZ. 2019-10-06T13:39:07.02 3.0 undecidable manual S 242 0.1259 124 -1.21 0
IV.MCIV.CHZ. 2019-10-06T13:39:07.10 0.3 undecidable manual S 197 0.0971 131 -0.25 76
IV.ARCI.HHZ. 2019-10-06T13:39:07.36 0.3 positive manual P 264 0.1763 116 0.63 68
IV.SACS.HHZ. 2019-10-06T13:39:06.41 0.6 undecidable manual P 99 0.1448 120 0.3 50
IV.MCIV.CHZ. 2019-10-06T13:39:05.58 0.1 positive manual P 197 0.0971 131 0.33 100
TV.SF01.EHZ. 2019-10-06T13:39:05.00 0.1 undecidable manual P 242 0.1259 124 -0.76 87
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
TV.SF01.EHN. ML:1.4 0.000269 1.24 AML other m 2019-10-06T13:39:07.17
IV.MCIV.CHN. ML:1.5 0.000402 0.3 AML other m 2019-10-06T13:39:07.66
IV.MCIV.CHE. ML:1.4 0.0003405 0.88 AML other m 2019-10-06T13:39:07.40
TV.SF01.EHE. ML:1.4 0.0002815 0.38 AML other m 2019-10-06T13:39:08.77
IV.ARCI.HHE. ML:0.9 6.39E-5 0.9 AML other m 2019-10-06T13:39:10.24
IV.ARCI.HHN. ML:0.9 6.595E-5 0.22 AML other m 2019-10-06T13:39:11.29
IV.LATE.HHN. ML:1.5 0.000162 0.42 AML other m 2019-10-06T13:39:15.28
IV.LATE.HHE. ML:1.3 9.885E-5 0.26 AML other m 2019-10-06T13:39:15.70
IV.SBPO.HNN. ML:3.6 0.000731 0.06 AML other m 2019-10-06T13:40:13.52
IV.SBPO.HNE. ML:4.4 0.004355 0.06 AML other m 2019-10-06T13:40:13.51
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download