Earthquake (quarry blast) with magnitude of ML 1.2 on date 29-08-2018 and time 11:54:04 (Italy) in region 7 km W Campagnatico (GR)

A magnitude ML 1.2 (quarry blast) earthquake occured in region: 7 km W Campagnatico (GR), on

  • 29-08-2018 09:54:04 (UTC)
  • 29-08-2018 11:54:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.87, 11.19 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
Campagnatico GR 7 2412 2412
Grosseto GR 13 82087 84499
Civitella Paganico GR 16 3154 87653
Roccastrada GR 16 9199 96852
Cinigiano GR 17 2618 99470

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km NE of Grosseto (82087 inhabitants)
52 Km S of Siena (53903 inhabitants)
87 Km SW of Arezzo (99543 inhabitants)
90 Km NW of Viterbo (67173 inhabitants)
99 Km NW of Civitavecchia (52991 inhabitants)
99 Km S of Scandicci (50609 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
Rev 1000 ML 1.2 2018-08-29
09:54:04
42.87 11.19 1 2019-04-24
14:51:03
Bollettino Sismico Italiano INGV 65702491
Rev 100 ML 1.3 2018-08-29
09:54:04
42.85 11.17 10 2018-08-29
10:07:07
Sala Sismica INGV-Roma 60333081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-29 09:54:04 ± 0.21
Latitude 42.87 ± 0.02
Longitude 11.19 ± 0.02
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 65702491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2350
Semi-minor axis of confidence ellipse (meter) 1080
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 18
Circular confidence region, given by single value of horizontal uncertainty (meter) 2350
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 143
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 9
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
Epicentral distance of station farthest from the epicenter (degree) 0.56387
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 60333081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-29 10:07:07

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 65702491
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-26 17:34:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VBKN.HHZ. 2018-08-29T09:55:34.44 3.0 undecidable manual Sg 12.11 0
IV.PANTE.HHZ. 2018-08-29T09:55:31.21 3.0 negative manual Pn 5.02 0
IV.IMI.HHZ. 2018-08-29T09:55:20.70 3.0 undecidable manual Sg 17.34 0
IV.ILLI.HHZ. 2018-08-29T09:55:13.34 3.0 positive manual Pn 1.91 0
MN.CUC.HHZ. 2018-08-29T09:55:00.15 3.0 undecidable manual Pn 2.04 0
IV.ZONE.HHZ. 2018-08-29T09:55:00.05 3.0 undecidable manual Sn 6.48 0
ST.RONC.EHZ. 2018-08-29T09:54:55.12 3.0 undecidable manual Sn 0.27 0
CR.ZAG.BHZ. 2018-08-29T09:54:54.62 3.0 undecidable manual Pg 11.65 0
IV.VCEL.EHZ. 2018-08-29T09:54:51.12 3.0 undecidable manual Sg 3.21 0
IV.TREG.HNZ. 2018-08-29T09:54:49.36 3.0 undecidable manual Sg 6.77 0
ST.DOSS.HHZ. 2018-08-29T09:54:23.14 3.0 positive manual Pn 0.51 0
IV.RCAV.EHZ. 2018-08-29T09:54:20.05 3.0 positive manual Pn -1.47 0
IV.BADI.EHZ. 2018-08-29T09:54:15.35 3.0 undecidable manual Sg -1.91 0
IV.MAGO.CHZ. 2018-08-29T09:54:15.80 0.6 undecidable manual P 316 0.5639 50 -1.28 30
TV.SF03.EHZ. 2018-08-29T09:54:12.72 0.3 undecidable manual P 100 0.366 91 -0.09 72
IV.FROS.HHN. 2018-08-29T09:54:12.24 0.6 undecidable manual P 356 0.3444 91 -0.08 49
IV.MCIV.CHZ. 2018-08-29T09:54:12.93 0.3 undecidable manual P 104 0.3651 91 0.16 71
IV.TRIF.HHE. 2018-08-29T09:54:11.60 0.3 undecidable manual P 320 0.3274 91 -0.33 69
TV.SF14.HHZ. 2018-08-29T09:54:11.34 0.6 undecidable manual P 110 0.3283 91 -0.62 43
IV.CASP.HHZ. 2018-08-29T09:54:10.23 0.1 undecidable manual P 253 0.2518 91 -0.03 100
IV.ARCI.HHE. 2018-08-29T09:54:09.69 0.3 undecidable manual P 94 0.2068 91 0.43 70
IV.RIBO.EHZ.01 2018-08-29T09:54:08.38 0.1 undecidable manual P 308 0.1358 92 0.7 85
IV.IMOL.HNZ. 2018-08-29T09:54:04.91 3.0 undecidable manual P -0.28 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CASP.HHN. ML:1 5.3087685E-5 1.424 AML other m 2018-08-29T09:54:15.77
IV.CASP.HHE. ML:1.1 7.3101525E-5 1.184 AML other m 2018-08-29T09:54:15.20
TV.SF01.EHE. ML:0 0.000231 1.7 AML other m 2018-08-29T09:54:17.95
TV.SF01.EHN. ML:1.4 0.00013645 0.34 AML other m 2018-08-29T09:54:16.66
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