Earthquake with magnitude of ML 1.5 on date 30-06-2020 and time 04:18:46 (Italy) in region 6 km NW Chiusdino (SI)

A magnitude ML 1.5 earthquake occured in region: 6 km NW Chiusdino (SI), on

  • 30-06-2020 02:18:46 (UTC)
  • 30-06-2020 04:18:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.19, 11.038 at 5 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
Chiusdino SI 6 1903 1903
Montieri GR 7 1204 3107
Radicondoli SI 8 914 4021
Castelnuovo di Val di Cecina PI 11 2231 6252
Monticiano SI 13 1571 7823
Monterotondo Marittimo GR 16 1371 9194
Casole d'Elsa SI 17 3897 13091
Pomarance PI 18 5897 18988
Sovicille SI 19 10116 29104
Massa Marittima GR 20 8375 37479

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km SW of Siena (53903 inhabitants)
48 Km N of Grosseto (82087 inhabitants)
64 Km S of Scandicci (50609 inhabitants)
67 Km S of Firenze (382808 inhabitants)
71 Km SE of Livorno (159219 inhabitants)
75 Km W of Arezzo (99543 inhabitants)
77 Km S of Prato (191150 inhabitants)
78 Km SE of Pisa (89158 inhabitants)
83 Km S of Pistoia (90315 inhabitants)
85 Km SE of Lucca (89046 inhabitants)
99 Km SE of Viareggio (62467 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 2020-06-30
02:18:46
43.1902 11.0377 5 2020-11-19
12:37:04
Bollettino Sismico Italiano INGV 83641621
Reviewed
Rev100
ML 1.5 2020-06-30
02:18:46
43.187 11.0458 5 2020-06-30
02:30:48
Sala Sismica INGV-Roma 80635711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-30 02:18:46 ± 0.17
Latitude 43.1902 ± 0.0099
Longitude 11.0377 ± 0.0160
Depth (km) 5 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83641621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1111
Semi-minor axis of confidence ellipse (meter) 1036
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 129
Circular confidence region, given by single value of horizontal uncertainty (meter) 1110
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.56
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.80939
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 83641621
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-09 09:30:31

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 80635711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-30 02:30:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ROSPO.HHZ. 2020-06-30T02:20:12.85 3.0 undecidable manual Sg 13.99 0
GU.SATI.HHZ. 2020-06-30T02:19:55.38 3.0 undecidable manual Sn -1.1 0
IV.PIGN.HHZ. 2020-06-30T02:19:33.89 3.0 undecidable manual Pg 8.48 0
IT.PLTA.HNZ. 2020-06-30T02:19:24.03 3.0 positive manual Pn 1.65 0
IV.LAV9.HHZ. 2020-06-30T02:19:20.94 3.0 positive manual Pg 8.56 0
IV.MCIV.CHZ. 2020-06-30T02:19:14.03 3.0 undecidable manual Sg 0.43 0
IV.RINC.HHZ. 2020-06-30T02:19:02.97 0.3 undecidable manual P 30 0.8094 50 0.7 57
IV.MAON.HHZ. 2020-06-30T02:19:02.17 0.3 undecidable manual P 175 0.7644 50 0.67 58
IV.CELB.HHZ. 2020-06-30T02:19:02.00 0.1 negative manual P 234 0.75 50 0.75 75
IV.CASP.HHZ. 2020-06-30T02:19:01.00 0.1 undecidable manual S 198 0.4182 96 -1.43 57
IV.PII.HHZ. 2020-06-30T02:18:59.03 0.1 undecidable manual P 325 0.6484 50 -0.49 85
IV.SF04.EHZ. 2020-06-30T02:18:58.01 3.0 undecidable manual P 0
IV.CSNT.HHZ. 2020-06-30T02:18:58.30 0.3 undecidable manual S 33 0.3372 98 -1.02 54
IV.CRMI.HHN. 2020-06-30T02:18:58.49 0.1 undecidable manual P 356 0.607 50 -0.31 89
TV.SF14.HHE. 2020-06-30T02:18:58.62 0.1 positive manual P 136 0.6061 50 -0.17 92
IV.CASP.HHZ. 2020-06-30T02:18:55.28 0.1 undecidable manual P 198 0.4182 96 -0.3 93
IV.RIBO.EHZ.01 2020-06-30T02:18:55.30 0.1 undecidable manual S 178 0.241 100 -0.36 95
IV.CSNT.HHZ. 2020-06-30T02:18:53.57 0.1 positive manual P 33 0.3372 98 -0.21 96
IV.TRIF.CHZ. 2020-06-30T02:18:51.50 0.1 undecidable manual S 233 0.1241 110 0.21 100
IV.RIBO.EHZ.01 2020-06-30T02:18:51.93 0.1 positive manual P 178 0.241 100 0.26 97
IV.FROS.CHZ. 2020-06-30T02:18:50.30 0.1 undecidable manual S 77 0.0881 117 0.26 99
IV.TRIF.CHZ. 2020-06-30T02:18:49.69 0.1 positive manual P 233 0.1241 110 0.54 92
IV.FROS.CHZ. 2020-06-30T02:18:48.94 0.1 negative manual P 77 0.0881 117 0.52 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FROS.CHE. ML:1.5 0.00058936745 0.128 AML other m 2020-06-30T02:18:50.41
IV.FROS.CHN. ML:1.6 0.0006349367 0.088 AML other m 2020-06-30T02:18:50.95
IV.TRIF.CHN. ML:1.5 0.0004256372 0.096 AML other m 2020-06-30T02:18:52.94
IV.TRIF.CHE. ML:1.5 0.00039521475 1.792 AML other m 2020-06-30T02:18:54.91
IV.RIBO.EHE.01 ML:1.5 0.0002021392 0.2208 AML other m 2020-06-30T02:18:55.58
IV.CSNT.HHE. ML:0.8 2.677104E-5 0.08 AML other m 2020-06-30T02:18:58.84
IV.CASP.HHN. ML:1.4 6.863496E-5 0.1808 AML other m 2020-06-30T02:19:01.04
IV.CASP.HHE. ML:1.4 6.855824E-5 0.24 AML other m 2020-06-30T02:19:05.45
TV.SF04.EHN. ML:1.3 3.806973E-5 0.2 AML other m 2020-06-30T02:19:07.58
TV.SF04.EHE. ML:1.3 3.7835265E-5 0.2416 AML other m 2020-06-30T02:19:08.33
IV.CELB.HHE. ML:1.7 6.7922295E-5 0.0608 AML other m 2020-06-30T02:19:12.73
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