Earthquake with magnitude of ML 1.6 on date 11-07-2020 and time 07:20:14 (Italy) in region 5 km W Castelnuovo di Val di Cecina (PI)

A magnitude ML 1.6 earthquake occured in region: 5 km W Castelnuovo di Val di Cecina (PI), on

  • 11-07-2020 05:20:14 (UTC)
  • 11-07-2020 07:20:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.22, 10.85 at 6 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
Castelnuovo di Val di Cecina PI 5 2231 2231
Monterotondo Marittimo GR 8 1371 3602
Pomarance PI 9 5897 9499
Monteverdi Marittimo PI 12 758 10257
Radicondoli SI 16 914 11171
Montieri GR 17 1204 12375
Massa Marittima GR 19 8375 20750
Sassetta LI 20 514 21264

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km W of Siena (53903 inhabitants)
55 Km NW of Grosseto (82087 inhabitants)
57 Km SE of Livorno (159219 inhabitants)
65 Km SW of Scandicci (50609 inhabitants)
66 Km SE of Pisa (89158 inhabitants)
69 Km SW of Firenze (382808 inhabitants)
75 Km SE of Lucca (89046 inhabitants)
76 Km S of Prato (191150 inhabitants)
79 Km S of Pistoia (90315 inhabitants)
87 Km SE of Viareggio (62467 inhabitants)
88 Km W of Arezzo (99543 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 1.6 2020-07-11
05:20:14
43.22 10.85 6 2020-11-19
12:37:06
Bollettino Sismico Italiano INGV 84472881
Reviewed
Rev100
ML 1.7 2020-07-11
05:20:14
43.22 10.84 6 2020-07-11
05:32:26
Sala Sismica INGV-Roma 80942291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-11 05:20:14 ± 0.13
Latitude 43.22 ± 0.00
Longitude 10.85 ± 0.01
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84472881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 632
Semi-minor axis of confidence ellipse (meter) 577
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 239
Circular confidence region, given by single value of horizontal uncertainty (meter) 630
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 3.15122
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 80942291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-11 05:32:26

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 84472881
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-05 16:01:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.IMTC.HHZ. 2020-07-11T05:21:50.13 3.0 undecidable manual Sn 2.97 0
IV.EUCT.HNZ. 2020-07-11T05:21:23.91 3.0 undecidable manual Sn 0.12 0
IV.ROSPO.HHZ. 2020-07-11T05:21:15.00 3.0 undecidable manual P 3.1512 9.36 0
GU.PZZ.HHZ. 2020-07-11T05:21:04.26 3.0 negative manual P 2.9839 0.93 0
IV.LRP.EHZ. 2020-07-11T05:20:54.80 3.0 undecidable manual P 2.5568 -2.64 0
IV.MMO1.EHZ. 2020-07-11T05:20:50.80 3.0 undecidable manual P 1.8337 3.35 0
IV.CRE.HHZ. 2020-07-11T05:20:44.70 0.6 undecidable manual S 63 0.8903 50 0.03 44
IV.MAON.HHZ. 2020-07-11T05:20:42.20 0.6 undecidable manual S 166 0.8184 50 -0.35 41
GU.MAIM.HHE. 2020-07-11T05:20:40.10 1.0 undecidable manual S 339 0.7401 50 -0.13 22
TV.SF01.EHZ. 2020-07-11T05:20:38.00 0.3 undecidable manual S 128 0.6601 50 0.13 67
IV.LMD.HHZ. 2020-07-11T05:20:35.30 3.0 undecidable manual S 1.054 -9.99 0
IV.CRMI.HHZ. 2020-07-11T05:20:35.10 0.6 undecidable manual S 9 0.581 50 -0.4 43
IV.PII.HHN. 2020-07-11T05:20:34.30 0.6 undecidable manual S 335 0.554 50 -0.41 43
IV.RONT.HHN. 2020-07-11T05:20:32.37 1.0 undecidable manual P 28 0.8777 50 0.6 19
IV.CRE.HHZ. 2020-07-11T05:20:32.63 0.6 undecidable manual P 63 0.8903 50 0.65 37
IV.LMD.HHZ. 2020-07-11T05:20:32.71 3.0 undecidable manual P 1.054 -2.09 0
IV.ASQU.HHE. 2020-07-11T05:20:32.11 0.6 undecidable manual P 49 0.8885 50 0.15 43
IV.RINC.HHE. 2020-07-11T05:20:31.73 0.6 undecidable manual P 39 0.8598 50 0.27 42
IV.MAON.HHZ. 2020-07-11T05:20:31.22 0.6 undecidable manual P 166 0.8184 50 0.46 40
IV.CASP.HHZ. 2020-07-11T05:20:30.10 1.0 undecidable manual S 179 0.4308 50 -0.97 18
GU.MAIM.HHE. 2020-07-11T05:20:29.98 0.6 undecidable manual P 339 0.7401 50 0.56 40
IV.CELB.HHE. 2020-07-11T05:20:29.04 1.0 undecidable manual P 225 0.6682 50 0.84 18
TV.SF04.EHZ. 2020-07-11T05:20:29.20 0.3 undecidable manual P 123 0.7042 50 0.39 63
IV.MPPT.EHE. 2020-07-11T05:20:29.88 0.3 undecidable manual P 13 0.7545 50 0.21 65
IV.BDI.HHZ. 2020-07-11T05:20:29.62 3.0 undecidable manual P 0.8607 -1.87 0
IV.RUFI.EHE. 2020-07-11T05:20:28.92 3.0 undecidable manual P 0.7779 -1.14 0
TV.SF13.HHE. 2020-07-11T05:20:28.81 0.3 undecidable manual P 126 0.6898 50 0.26 65
TV.SF01.EHZ. 2020-07-11T05:20:28.45 0.1 undecidable manual P 128 0.6601 50 0.39 85
IV.CRMI.HHZ. 2020-07-11T05:20:26.60 0.1 undecidable manual P 9 0.581 50 -0.09 92
IV.PII.HHN. 2020-07-11T05:20:26.04 0.3 undecidable manual P 335 0.554 50 -0.19 68
IV.RIBO.EHZ.01 2020-07-11T05:20:26.20 0.3 undecidable manual S 153 0.3067 100 -0.43 68
IV.CASP.HHZ. 2020-07-11T05:20:23.77 0.1 undecidable manual P 179 0.4308 50 -0.36 90
IV.FROS.CHZ. 2020-07-11T05:20:23.10 0.3 undecidable manual S 93 0.2203 103 -0.27 71
IV.CSNT.HHZ. 2020-07-11T05:20:23.10 0.1 undecidable manual P 51 0.4047 50 -0.57 85
IV.RIBO.EHZ.01 2020-07-11T05:20:21.44 0.1 undecidable manual P 153 0.3067 100 -0.13 96
IV.FROS.CHZ. 2020-07-11T05:20:19.65 0.1 undecidable manual P 93 0.2203 103 -0.04 100
IV.TRIF.CHZ. 2020-07-11T05:20:19.50 0.3 undecidable manual S 162 0.1124 115 0.07 76
IV.TRIF.CHZ. 2020-07-11T05:20:17.65 0.1 undecidable manual P 162 0.1124 115 0.24 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TRIF.CHE. ML:0 0.0022198225 0.1664 AML other m 2020-07-11T05:20:20.65
IV.TRIF.CHN. ML:0 0.001762109 0.096 AML other m 2020-07-11T05:20:19.00
IV.FROS.CHE. ML:0 0.0003749794 0.1056 AML other m 2020-07-11T05:20:23.70
IV.FROS.CHN. ML:0 0.0003979717 0.256 AML other m 2020-07-11T05:20:26.57
IV.CSNT.HHE. ML:0 3.988434E-5 0.1408 AML other m 2020-07-11T05:20:29.48
IV.CASP.HHN. ML:0 0.000103739205 0.3392 AML other m 2020-07-11T05:20:30.18
IV.CSNT.HHN. ML:0 4.0505225E-5 0.32 AML other m 2020-07-11T05:20:29.74
IV.CASP.HHE. ML:0 8.486771E-5 0.16 AML other m 2020-07-11T05:20:31.16
IV.CRMI.HHE. ML:0 1.3815821E-5 0.2592 AML other m 2020-07-11T05:20:36.15
IV.CRMI.HHN. ML:0.7 8.665E-6 0.48 AML other m 2020-07-11T05:20:36.50
TV.SF01.EHN. ML:0 6.45866E-5 0.1984 AML other m 2020-07-11T05:20:38.43
TV.SF01.EHE. ML:0 0.0001050242 0.3808 AML other m 2020-07-11T05:20:38.41
TV.SF04.EHE. ML:1.8 8.09E-5 1.66 AML other m 2020-07-11T05:20:41.97
TV.SF04.EHN. ML:1.8 7.805E-5 0.28 AML other m 2020-07-11T05:20:41.49
IV.RIBO.EHE.01 ML:1.7 0.00023923194 0.5024 AML other m 2020-07-11T05:20:30.55
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