Earthquake with magnitude of ML 1.5 on date 06-07-2021 and time 10:05:14 (UTC) in region 4 km SW Pomarance (PI)

A magnitude ML 1.5 earthquake occured in region: 4 km SW Pomarance (PI), on

  • 06-07-2021 10:05:14 (UTC)
  • 06-07-2021 12:05:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2690, 10.8490 at 4 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
Pomarance PI 4 5897 5897
Castelnuovo di Val di Cecina PI 8 2231 8128
Monterotondo Marittimo GR 14 1371 9499
Monteverdi Marittimo PI 15 758 10257
Volterra PI 15 10519 20776
Radicondoli SI 16 914 21690
Montecatini Val di Cecina PI 16 1749 23439
Casole d'Elsa SI 18 3897 27336
Guardistallo PI 18 1234 28570
Montescudaio PI 19 2144 30714
Casale Marittimo PI 19 1122 31836

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km W of Siena (53903 inhabitants)
54 Km SE of Livorno (159219 inhabitants)
60 Km NW of Grosseto (82087 inhabitants)
61 Km SW of Scandicci (50609 inhabitants)
61 Km SE of Pisa (89158 inhabitants)
65 Km SW of Firenze (382808 inhabitants)
70 Km SE of Lucca (89046 inhabitants)
71 Km S of Prato (191150 inhabitants)
74 Km S of Pistoia (90315 inhabitants)
82 Km SE of Viareggio (62467 inhabitants)
87 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 1.5 2021-07-06
10:05:14
43.2688 10.8488 4 2021-12-29
11:12:29
Bollettino Sismico Italiano INGV 95333681
Reviewed
Rev100
ML 1.5 2021-07-06
10:05:14
43.2695 10.8523 3 2021-07-06
10:13:57
Sala Sismica INGV-Roma 92293931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-06 10:05:14 ± 0.1
Latitude 43.2688 ± 0.0063
Longitude 10.8488 ± 0.0074
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95333681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 564
Semi-minor axis of confidence ellipse (meter) 343
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 15
Circular confidence region, given by single value of horizontal uncertainty (meter) 580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.77881
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 16
Type of magnitude ML
Reference to an origin 92293931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-06 10:13:57

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 16
Type of magnitude ML
Reference to an origin 95333681
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-09-12 08:24:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OT.OT14.EHZ. 2021-07-06T10:07:05.29 3.0 undecidable manual Sn 0.15 0
IV.IFOR.HHZ. 2021-07-06T10:07:02.69 3.0 undecidable manual Sg 11.86 0
IV.GIZZ.HHZ. 2021-07-06T10:06:57.36 3.0 positive manual Pg 14.42 0
IV.CAGR.HHZ. 2021-07-06T10:06:53.26 3.0 undecidable manual Pn 4.93 0
IT.PLTA.HNZ. 2021-07-06T10:06:45.65 3.0 undecidable manual Sn -0.95 0
IV.TDS.HHZ. 2021-07-06T10:06:39.49 3.0 positive manual Pn 2.25 0
CR.STON.BHZ. 2021-07-06T10:06:38.28 3.0 undecidable manual Pn 7.02 0
IV.VOBA.EHZ. 2021-07-06T10:06:28.13 3.0 undecidable manual Sg 1.67 0
IV.SARZ.HHZ. 2021-07-06T10:06:19.94 3.0 undecidable manual Sn 0.01 0
MN.TRI.HHZ. 2021-07-06T10:06:15.00 3.0 positive manual Pg 8.75 0
GU.PZZ.HHZ. 2021-07-06T10:06:12.79 3.0 positive manual Pg 9.9 0
IV.DGI.HHZ. 2021-07-06T10:06:08.83 3.0 undecidable manual Pg 4.45 0
IV.ATCC.EHZ. 2021-07-06T10:06:02.14 3.0 undecidable manual S 2.13 0
IV.CADC.EHZ. 2021-07-06T10:05:51.07 3.0 positive manual Pn -1.97 0
IV.CRMI.HHZ. 2021-07-06T10:05:33.94 0.6 undecidable manual S 10 59.3961 50 -0.59 42
GU.POPM.HHZ. 2021-07-06T10:05:30.12 0.3 undecidable manual P 355 86.4468 50 -0.16 67
IV.BOSL.HHZ. 2021-07-06T10:05:30.50 0.3 undecidable manual P 30 84.7485 50 0.48 63
TV.SF01.EHZ. 2021-07-06T10:05:29.22 0.3 undecidable manual P 131 76.9674 50 0.39 65
IV.MPPT.EHZ. 2021-07-06T10:05:29.44 0.3 undecidable manual P 14 78.7656 50 0.33 65
IV.CELB.HHZ. 2021-07-06T10:05:28.67 0.3 undecidable manual P 222 77.6667 50 -0.27 66
IV.CSNT.HHZ. 2021-07-06T10:05:28.62 0.3 undecidable manual S 57 42.2244 95 -0.7 62
IV.ARCI.HHZ. 2021-07-06T10:05:28.01 0.3 undecidable manual P 132 68.6757 50 0.46 65
IV.CRMI.HHZ. 2021-07-06T10:05:26.19 0.1 undecidable manual P 10 59.3961 50 0.08 95
IV.PII.HHZ. 2021-07-06T10:05:25.46 0.3 undecidable manual P 333 56.5989 50 -0.23 70
IV.CASP.HHZ. 2021-07-06T10:05:24.52 0.3 undecidable manual P 179 53.0025 50 -0.62 63
IV.CSNT.HHZ. 2021-07-06T10:05:23.16 0.1 positive manual P 57 42.2244 95 0.05 99
IV.OSSC.HHE. 2021-07-06T10:05:23.31 0.3 undecidable manual P 48 42.7239 95 0.1 73
IV.FROS.CHZ. 2021-07-06T10:05:23.47 0.3 undecidable manual S 105 25.6521 98 -0.16 75
IV.TRIF.CHZ. 2021-07-06T10:05:20.43 0.3 undecidable manual S 166 17.6712 102 -0.46 71
IV.FROS.CHZ. 2021-07-06T10:05:20.19 0.1 undecidable manual P 105 25.6521 98 0.37 95
IV.MAGO.CHZ. 2021-07-06T10:05:19.97 0.3 undecidable manual S 272 15.4734 104 -0.17 76
IV.MAGO.CHZ. 2021-07-06T10:05:18.12 0.1 positive manual P 272 15.4734 104 0.31 98
IV.TRIF.CHZ. 2021-07-06T10:05:18.44 0.1 undecidable manual P 166 17.6712 102 0.2 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MAGO.CHE. ML:2.3 0.0021100000000000003 0.34 AML other m 2021-07-06T10:05:20.20
IV.MAGO.CHN. ML:2.4 0.00259 0.34 AML other m 2021-07-06T10:05:20.09
IV.TRIF.CHN. ML:1.9 0.000814 0.84 AML other m 2021-07-06T10:05:20.23
IV.TRIF.CHE. ML:2.0 0.0010955 0.52 AML other m 2021-07-06T10:05:20.53
IV.FROS.CHE. ML:1.6 0.000237 0.78 AML other m 2021-07-06T10:05:24.28
IV.FROS.CHN. ML:1.6 0.0002215 0.18 AML other m 2021-07-06T10:05:24.75
IV.CASP.HHE. ML:1.1 0.0000289 0.5 AML other m 2021-07-06T10:05:26.95
IV.CSNT.HHE. ML:1.1 0.0000406 1.26 AML other m 2021-07-06T10:05:28.88
IV.CSNT.HHN. ML:1.1 0.00004285 0.32 AML other m 2021-07-06T10:05:29.74
IV.CRMI.HHN. ML:1.0 0.000019200000000000003 1.14 AML other m 2021-07-06T10:05:35.70
IV.CASP.HHN. ML:1.0 0.0000259 1.02 AML other m 2021-07-06T10:05:35.84
IV.CRMI.HHE. ML:1.1 0.00002295 0.44 AML other m 2021-07-06T10:05:35.85
IV.CELB.HHE. ML:1.9 0.0001255 0.32 AML other m 2021-07-06T10:05:41.37
IV.CELB.HHN. ML:1.8 0.00009155 1.08 AML other m 2021-07-06T10:05:41.40
GU.POPM.HHE. ML:1.4 0.0000349 1.18 AML other m 2021-07-06T10:05:43.92
GU.POPM.HHN. ML:1.5 0.00003765 0.6 AML other m 2021-07-06T10:05:44.43
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