Earthquake with magnitude of ML 1.5 on date 30-06-2020 and time 04:18:46 (Italy) in region 5 km NW Chiusdino (SI)

A magnitude ML 1.5 earthquake occured in region: 5 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, 11.05 at 5 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 5 1903 1903
Montieri GR 7 1204 3107
Radicondoli SI 8 914 4021
Castelnuovo di Val di Cecina PI 12 2231 6252
Monticiano SI 12 1571 7823
Monterotondo Marittimo GR 16 1371 9194
Casole d'Elsa SI 17 3897 13091
Sovicille SI 18 10116 23207
Pomarance PI 19 5897 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)
65 Km S of Scandicci (50609 inhabitants)
67 Km S of Firenze (382808 inhabitants)
72 Km SE of Livorno (159219 inhabitants)
75 Km W of Arezzo (99543 inhabitants)
77 Km S of Prato (191150 inhabitants)
79 Km SE of Pisa (89158 inhabitants)
84 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
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.5 2020-06-30
02:18:46
43.19 11.05 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 ± 0.11
Latitude 43.19 ± 0.01
Longitude 11.05 ± 0.01
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80635711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 832
Semi-minor axis of confidence ellipse (meter) 575
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 130
Circular confidence region, given by single value of horizontal uncertainty (meter) 830
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.80849
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 11
Magnitude information

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. 2020-06-30T02:19:02.90 0.6 undecidable manual P 30 0.8085 50 0.41 41
IV.MAON.HHZ. 2020-06-30T02:19:02.18 0.6 undecidable manual P 175 0.7608 50 0.51 40
IV.CELB.HHZ. 2020-06-30T02:19:01.99 0.3 undecidable manual P 235 0.7527 50 0.46 62
IV.PII.HHZ. 2020-06-30T02:18:59.36 0.6 undecidable manual P 325 0.6547 50 -0.49 42
IV.CRMI.HHN. 2020-06-30T02:18:59.09 0.6 undecidable manual P 356 0.6097 50 0 47
TV.SF14.HHE. 2020-06-30T02:18:58.61 0.3 undecidable manual P 136 0.5989 50 -0.3 66
IV.SF04.EHZ. 2020-06-30T02:18:58.01 3.0 undecidable manual P 0
IV.CASP.HHZ. 2020-06-30T02:18:55.48 0.6 undecidable manual P 199 0.4173 50 -0.31 45
IV.RIBO.EHZ.01 2020-06-30T02:18:55.42 0.6 undecidable manual S 180 0.2374 102 -0.44 46
IV.CSNT.HHZ. 2020-06-30T02:18:53.55 0.3 undecidable manual P 32 0.3363 98 -0.52 66
IV.RIBO.EHZ.01 2020-06-30T02:18:51.93 0.1 positive manual P 180 0.2374 102 0.02 100
IV.TRIF.CHZ. 2020-06-30T02:18:51.61 0.6 undecidable manual S 235 0.1268 111 -0.14 50
IV.FROS.CHZ. 2020-06-30T02:18:50.32 0.6 undecidable manual S 74 0.0836 120 0.08 51
IV.TRIF.CHZ. 2020-06-30T02:18:49.69 0.1 positive manual P 235 0.1268 111 0.16 99
IV.FROS.CHZ. 2020-06-30T02:18:48.94 0.1 negative manual P 74 0.0836 120 0.28 98
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:1.5 0.0006349367 0.088 AML other m 2020-06-30T02:18:50.95
IV.TRIF.CHE. ML:1.5 0.00039521475 0.208 AML other m 2020-06-30T02:18:53.91
IV.TRIF.CHN. ML:1.6 0.0004256372 0.096 AML other m 2020-06-30T02:18:52.94
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.EHE. ML:1.3 3.7835265E-5 0.2416 AML other m 2020-06-30T02:19:08.33
TV.SF04.EHN. ML:1.3 3.806973E-5 0.2 AML other m 2020-06-30T02:19:07.58
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
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