Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 04-03-2016 and time 06:47:27 (UTC) in region 12 km SW Roccastrada (GR)

A magnitude ML 2.4 earthquake occured in region: 12 km SW Roccastrada (GR), on

  • 04-03-2016 06:47:27 (UTC)
  • 04-03-2016 07:47:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9290, 11.0670 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.

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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 12 9199 9199
Gavorrano GR 13 8580 17779
Scarlino GR 18 3847 21626
Campagnatico GR 18 2412 24038
Grosseto GR 19 82087 106125
Civitella Paganico GR 19 3154 109279
Massa Marittima GR 20 8375 117654

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km N of Grosseto (82087 inhabitants)
49 Km SW of Siena (53903 inhabitants)
89 Km SW of Arezzo (99543 inhabitants)
93 Km SE of Livorno (159219 inhabitants)
93 Km S of Scandicci (50609 inhabitants)
95 Km S of Firenze (382808 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 2.4 2016-03-04
06:47:27		 42.9287 11.0673 8 2016-05-17
13:17:56		 Bollettino Sismico Italiano INGV 23762451
Reviewed
Rev100 		ML 2.4 2016-03-04
06:47:27		 42.9233 11.0875 7 2016-03-04
07:02:18		 Sala Sismica INGV-Roma 23704801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-03-04 06:47:27 ± 0.12
Latitude 42.9287 ± 0.0045
Longitude 11.0673 ± 0.0074
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 23762451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 466
Semi-minor axis of confidence ellipse (meter) 451
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 342
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 45
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 5.52184
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 23704801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-03-04 07:02:18

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 23762451
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2016-03-08 15:53:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIPA.HHZ. 2016-03-04T06:48:48.81 3.0 undecidable manual Pn 612.9198 -1.02 0
IV.EUCT.HNZ. 2016-03-04T06:48:54.99 3.0 undecidable manual Sg 9.16 0
IV.BAG8.HNZ. 2016-03-04T06:48:47.99 3.0 undecidable manual Sn -3.29 0
IV.LEOD.HNZ. 2016-03-04T06:48:43.99 3.0 undecidable manual Sn 291.486 -0.11 0
IV.RMP.HHZ. 2016-03-04T06:48:20.99 3.0 undecidable manual S 0.48 0
IV.PIGN.HNZ. 2016-03-04T06:48:14.86 3.0 undecidable manual Pn 1.38 0
IV.LEOD.HNZ. 2016-03-04T06:48:09.58 3.0 positive manual Pn 291.486 -0.44 0
IV.PARC.HHZ. 2016-03-04T06:48:03.01 0.3 undecidable manual S 49 123.7872 50 -0.57 55
IV.TOLF.HHZ. 2016-03-04T06:48:03.45 0.1 undecidable manual S 141 122.5884 50 0.2 80
GU.MAIM.HHZ. 2016-03-04T06:48:02.00 0.1 undecidable manual S 337 118.7922 50 -0.25 80
IV.SSP9.EHZ. 2016-03-04T06:48:01.24 0.1 undecidable manual S 50 111.8991 50 0.84 67
IV.ASQU.HHZ. 2016-03-04T06:48:00.25 0.1 undecidable manual S 31 112.4985 50 -0.33 80
IV.RUFI.EHZ. 2016-03-04T06:47:58.97 0.1 undecidable manual S 19 107.0151 50 -0.13 84
GU.GRAM.HHZ. 2016-03-04T06:47:57.89 0.3 undecidable manual P 335 191.0643 38 -0.42 44
IV.CRMI.HHZ. 2016-03-04T06:47:56.39 0.1 undecidable manual S 356 96.4257 50 0.1 86
IV.SSM1.HNZ. 2016-03-04T06:47:56.26 3.0 undecidable manual P 0.91 0
IV.PII.HHZ. 2016-03-04T06:47:56.55 0.1 undecidable manual S 334 98.3238 50 -0.23 84
IV.MGAB.HHZ. 2016-03-04T06:47:52.91 0.1 undecidable manual S 91 84.8484 50 -0.29 85
IV.LMD.HHZ. 2016-03-04T06:47:51.02 0.1 undecidable manual P 22 137.4624 50 0.58 71
IV.BDI.HHZ. 2016-03-04T06:47:50.04 0.3 undecidable manual P 343 131.4684 50 0.53 55
IV.CELB.HHZ. 2016-03-04T06:47:49.80 0.1 undecidable manual S 254 72.5718 50 -0.11 90
IV.OSSC.HHZ. 2016-03-04T06:47:48.11 0.1 undecidable manual S 12 67.5768 50 -0.47 85
IV.MTCR.EHZ. 2016-03-04T06:47:48.76 0.1 undecidable manual P 358 122.0889 50 0.69 70
IV.CSNT.HHZ. 2016-03-04T06:47:47.13 0.1 undecidable manual S 17 62.9925 50 -0.24 90
IV.MOMA.HHZ. 2016-03-04T06:47:47.66 0.1 undecidable manual P 96 122.8881 50 -0.52 75
IV.PARC.HHZ. 2016-03-04T06:47:47.94 0.3 undecidable manual P 49 123.7872 50 -0.39 58
GU.MAIM.HHZ. 2016-03-04T06:47:47.12 0.1 undecidable manual P 337 118.7922 50 -0.44 77
IV.BADI.EHZ. 2016-03-04T06:47:47.03 0.1 undecidable manual P 55 114.8961 50 0.07 84
IV.TOLF.HHZ. 2016-03-04T06:47:47.32 0.1 undecidable manual P 141 122.5884 50 -0.82 66
IV.ASQU.HHZ. 2016-03-04T06:47:47.14 0.1 undecidable manual P 31 112.4985 50 0.55 76
IV.MPPT.EHZ. 2016-03-04T06:47:47.68 0.1 undecidable manual P 1 114.1968 50 0.83 67
IV.ATVO.HHZ. 2016-03-04T06:47:47.47 0.1 undecidable manual P 65 119.4915 50 -0.19 81
IV.RUFI.EHZ. 2016-03-04T06:47:46.46 0.1 positive manual P 19 107.0151 50 0.72 71
IV.SSP9.EHZ. 2016-03-04T06:47:46.97 0.1 undecidable manual P 50 111.8991 50 0.48 77
IV.GROG.HHZ. 2016-03-04T06:47:45.93 0.3 undecidable manual P 301 109.9122 50 -0.27 61
IV.PII.HHZ. 2016-03-04T06:47:45.14 0.1 positive manual P 334 98.3238 50 0.74 72
IV.ATTE.HHZ. 2016-03-04T06:47:45.93 0.1 undecidable manual P 74 108.4137 50 -0.03 86
IV.CRE.HHZ. 2016-03-04T06:47:45.36 0.1 undecidable manual P 43 104.7174 50 -0.03 86
IV.CRMI.HHZ. 2016-03-04T06:47:44.60 0.1 undecidable manual P 356 96.4257 50 0.49 80
IV.MGAB.HHZ. 2016-03-04T06:47:42.55 0.1 undecidable manual P 91 84.8484 50 0.22 86
IV.CAFI.HHZ. 2016-03-04T06:47:42.29 0.1 negative manual P 58 85.248 50 -0.1 88
IV.CELB.HHZ. 2016-03-04T06:47:40.51 0.1 negative manual P 254 72.5718 50 0.08 91
IV.LATE.HHZ. 2016-03-04T06:47:40.24 0.1 undecidable manual P 120 69.375 50 0.29 88
IV.SACS.HHZ. 2016-03-04T06:47:40.13 0.1 undecidable manual P 97 68.9754 50 0.24 89
IV.ARCI.HHZ. 2016-03-04T06:47:39.45 0.1 undecidable manual S 104 34.2435 50 -0.23 95
IV.OSSC.HHZ. 2016-03-04T06:47:39.71 0.1 positive manual P 12 67.5768 50 0.05 92
IV.CSNT.HHZ. 2016-03-04T06:47:38.84 0.1 positive manual P 17 62.9925 50 -0.13 92
IV.MCIV.HHZ. 2016-03-04T06:47:37.15 0.1 negative manual P 108 52.2033 50 -0.15 93
IV.CASP.HHZ. 2016-03-04T06:47:35.74 0.1 undecidable manual S 227 22.4553 110 -0.06 100
IV.TRIF.HHZ. 2016-03-04T06:47:35.72 0.1 undecidable manual S 327 24.5532 109 -0.79 81
IV.ARCI.HHZ. 2016-03-04T06:47:34.13 0.1 negative manual P 104 34.2435 50 -0.4 91
IV.CASP.HHZ. 2016-03-04T06:47:32.54 0.1 negative manual P 227 22.4553 110 0.25 96
IV.TRIF.HHZ. 2016-03-04T06:47:32.59 0.1 positive manual P 327 24.5532 109 -0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARCI.HHN. ML:3.2 0.0061600000000000005 0.2 AML other m 2016-03-04T06:47:39.55
IV.ARCI.HHE. ML:3.1 0.004875 0.2 AML other m 2016-03-04T06:47:40.08
IV.ASQU.HHE. ML:2.4 0.00023649999999999998 0.28 AML other m 2016-03-04T06:48:00.97
IV.ASQU.HHN. ML:2.1 0.00011549999999999999 0.58 AML other m 2016-03-04T06:48:04.38
IV.ATTE.HHN. ML:2.3 0.0001705 0.82 AML other m 2016-03-04T06:48:05.18
IV.ATTE.HHE. ML:2.2 0.000152 0.98 AML other m 2016-03-04T06:48:07.03
IV.ATVO.HHE. ML:2.4 0.00016999999999999999 0.72 AML other m 2016-03-04T06:48:06.30
IV.ATVO.HHN. ML:2.4 0.00017449999999999999 1.44 AML other m 2016-03-04T06:47:52.13
IV.BDI.HHN. ML:2.2 0.0001104 1.48 AML other m 2016-03-04T06:48:10.19
IV.BDI.HHE. ML:2.2 0.00009365 1.16 AML other m 2016-03-04T06:48:13.70
IV.CAFI.HHN. ML:2.2 0.0002035 1.2 AML other m 2016-03-04T06:47:59.52
IV.CAFI.HHE. ML:2.2 0.000203 1.24 AML other m 2016-03-04T06:47:46.90
IV.CASP.HHE. ML:3.1 0.008895 0.34 AML other m 2016-03-04T06:47:35.83
IV.CASP.HHN. ML:3.0 0.00679 0.6 AML other m 2016-03-04T06:47:36.32
IV.CELB.HHN. ML:3.2 0.002255 1.26 AML other m 2016-03-04T06:47:50.94
IV.CELB.HHE. ML:3.1 0.002015 0.34 AML other m 2016-03-04T06:47:51.60
IV.CRE.HHN. ML:2.3 0.000178 1.1 AML other m 2016-03-04T06:47:52.15
IV.CRE.HHE. ML:2.4 0.000209 1.24 AML other m 2016-03-04T06:48:04.26
IV.CRMI.HHN. ML:2.0 0.00009975 1.58 AML other m 2016-03-04T06:48:00.74
IV.CRMI.HHE. ML:2.2 0.00014900000000000002 0.36 AML other m 2016-03-04T06:47:59.23
IV.CSNT.HHN. ML:2.3 0.000395 0.56 AML other m 2016-03-04T06:47:49.97
IV.CSNT.HHE. ML:2.4 0.0004545 0.9 AML other m 2016-03-04T06:47:49.79
GU.MAIM.HHE. ML:2.2 0.000134 0.46 AML other m 2016-03-04T06:48:06.30
GU.MAIM.HHN. ML:2.2 0.00013550000000000001 1.12 AML other m 2016-03-04T06:48:07.13
IV.MCIV.HHE. ML:3.0 0.00269 0.26 AML other m 2016-03-04T06:47:43.31
IV.MCIV.HHN. ML:3.0 0.0022 0.46 AML other m 2016-03-04T06:47:43.68
IV.MGAB.HNN. ML:2.4 0.00032950000000000004 0.82 AML other m 2016-03-04T06:47:56.87
IV.MGAB.HHE. ML:2.4 0.00034050000000000004 0.46 AML other m 2016-03-04T06:47:45.96
IV.MGAB.HNE. ML:2.4 0.000335 0.44 AML other m 2016-03-04T06:47:45.96
IV.MGAB.HHN. ML:2.4 0.000311 0.84 AML other m 2016-03-04T06:47:56.87
IV.OSSC.HHE. ML:2.2 0.00028849999999999997 0.88 AML other m 2016-03-04T06:47:50.74
IV.OSSC.HHN. ML:2.2 0.000284 0.38 AML other m 2016-03-04T06:47:48.45
IV.PARC.HHN. ML:2.3 0.0001565 0.7 AML other m 2016-03-04T06:48:06.93
IV.PARC.HHE. ML:2.5 0.00021300000000000003 0.64 AML other m 2016-03-04T06:48:06.92
IV.PII.HHN. ML:2.6 0.000428 0.78 AML other m 2016-03-04T06:48:00.15
IV.PII.HHE. ML:2.6 0.0004445 0.56 AML other m 2016-03-04T06:48:00.12
IV.SACS.HNN. ML:2.3 0.000322 0.36 AML other m 2016-03-04T06:47:46.04
IV.SACS.HHN. ML:2.3 0.000333 0.34 AML other m 2016-03-04T06:47:46.05
IV.SACS.HHE. ML:2.4 0.00044750000000000004 1.54 AML other m 2016-03-04T06:47:43.15
IV.SACS.HNE. ML:2.4 0.000462 1.58 AML other m 2016-03-04T06:47:44.76
IV.TOLF.HHE. ML:2.6 0.00028500000000000004 0.58 AML other m 2016-03-04T06:48:07.87
IV.TOLF.HHN. ML:2.7 0.000327 1.58 AML other m 2016-03-04T06:48:08.21
IV.TRIF.HHN. ML:3.5 0.020550000000000002 0.24 AML other m 2016-03-04T06:47:35.89
IV.TRIF.HHE. ML:3.6 0.02655 0.62 AML other m 2016-03-04T06:47:35.91
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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