Earthquake (quarry blast) with magnitude of ML 1.0 on date 29-11-2019 and time 11:05:16 (Italy) in region 2 km S Roccastrada (GR)

A magnitude ML 1.0 (quarry blast) earthquake occured in region: 2 km S Roccastrada (GR), on

  • 29-11-2019 10:05:16 (UTC)
  • 29-11-2019 11:05:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9940, 11.1690 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: quarry blast.

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
Roccastrada GR 2 9199 9199
Civitella Paganico GR 9 3154 12353
Campagnatico GR 15 2412 14765
Monticiano SI 16 1571 16336
Chiusdino SI 19 1903 18239
Montieri GR 20 1204 19443

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km N of Grosseto (82087 inhabitants)
39 Km SW of Siena (53903 inhabitants)
78 Km SW of Arezzo (99543 inhabitants)
85 Km S of Scandicci (50609 inhabitants)
87 Km S of Firenze (382808 inhabitants)
93 Km SE of Livorno (159219 inhabitants)
99 Km S of Prato (191150 inhabitants)
100 Km NW of Viterbo (67173 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 1.0 2019-11-29
10:05:16
42.9942 11.169 1 2020-02-28
16:42:27
Bollettino Sismico Italiano INGV 76772921
Reviewed
Rev100
ML 0.9 2019-11-29
10:05:16
42.9938 11.1798 8 2019-11-29
10:22:24
Sala Sismica INGV-Roma 74147471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-11-29 10:05:16 ± 0.07
Latitude 42.9942 ± 0.0054
Longitude 11.1690 ± 0.0061
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type quarry blast
Origin ID 76772921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 600
Semi-minor axis of confidence ellipse (meter) 470
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 23
Circular confidence region, given by single value of horizontal uncertainty (meter) 600.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.56657
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 74147471
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-11-29 10:22:24

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 76772921
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-24 13:07:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RESU.HHZ. 2019-11-29T10:07:03.70 3.0 undecidable manual Pg 17.459999 0
IV.DGI.HHZ. 2019-11-29T10:06:54.63 3.0 undecidable manual Sg 6.57 0
OX.CIMO.HHZ. 2019-11-29T10:06:40.48 3.0 undecidable manual Sn 0.18 0
IV.SPS2.HHZ. 2019-11-29T10:06:40.78 3.0 undecidable manual Pn 1.28 0
IV.SALB.HHZ. 2019-11-29T10:06:36.97 3.0 positive manual Pn 3.22 0
IV.PAOL.HHZ. 2019-11-29T10:06:18.31 3.0 undecidable manual Pg 8.98 0
IV.SARZ.HHZ. 2019-11-29T10:06:13.67 3.0 undecidable manual Sn -4.73 0
MN.TRI.HHZ. 2019-11-29T10:06:08.44 3.0 negative manual Pg 7.17 0
OX.CIMO.HHZ. 2019-11-29T10:06:06.22 3.0 negative manual Pg 4.09 0
IV.ARVD.HHZ. 2019-11-29T10:05:59.70 3.0 undecidable manual S 0.22 0
IV.ATCC.EHZ. 2019-11-29T10:05:53.12 3.0 undecidable manual S -1.84 0
IV.CPGN.HNZ. 2019-11-29T10:05:46.73 3.0 undecidable manual S -1.71 0
IV.NDIM.HNZ. 2019-11-29T10:05:39.60 3.0 positive manual Pg -0.96 0
IV.MAON.HHZ. 2019-11-29T10:05:29.11 0.1 undecidable manual P 183 62.8926 50 -0.16 90
TV.SF03.EHN. 2019-11-29T10:05:26.08 0.3 undecidable manual P 117 47.0196 91 -0.16 70
TV.SF04.EHZ. 2019-11-29T10:05:25.52 0.1 undecidable manual P 114 43.623 91 -0.03 96
IV.CASP.HHZ. 2019-11-29T10:05:23.40 0.3 undecidable manual P 228 33.4443 91 -0.11 72
IV.ARCI.HHZ. 2019-11-29T10:05:23.04 0.3 undecidable manual P 122 29.4483 91 0.32 70
IV.FROS.CHZ. 2019-11-29T10:05:21.61 0.1 undecidable manual P 358 23.9538 91 0.01 100
IV.TRIF.CHE. 2019-11-29T10:05:21.83 0.3 undecidable manual P 302 25.3524 91 -0.07 74
IV.RIBO.EHZ.01 2019-11-29T10:05:19.24 0.1 undecidable manual P 243 11.1777 93 0.2 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RIBO.EHE.01 ML:1.6 0.0006698612500000001 1.8016 AML other m 2019-11-29T10:05:23.02
IV.ARCI.HHE. ML:0.8 0.000036586826000000005 0.2432 AML other m 2019-11-29T10:05:28.28
IV.ARCI.HHN. ML:0.9 0.000038411885 0.32 AML other m 2019-11-29T10:05:28.77
IV.CASP.HHN. ML:0.6 0.000017503134999999998 0.1408 AML other m 2019-11-29T10:05:30.50
IV.CASP.HHE. ML:0.6 0.000021964775 0.32 AML other m 2019-11-29T10:05:30.49
TV.SF04.EHN. ML:1.2 0.0000526119135 0.1408 AML other m 2019-11-29T10:05:31.34
IV.ARCI.HNE. ML:1.0 0.000057444853 0.2816 AML other m 2019-11-29T10:05:31.52
TV.SF04.EHE. ML:1.3 0.000059220585 0.3008 AML other m 2019-11-29T10:05:35.94
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