Earthquake with magnitude of ML 1.9 on date 15-06-2020 and time 19:44:50 (Italy) in region 3 km E Montieri (GR)

A magnitude ML 1.9 earthquake occured in region: 3 km E Montieri (GR), on

  • 15-06-2020 17:44:50 (UTC)
  • 15-06-2020 19:44:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.13, 11.05 at 8 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
Montieri GR 3 1204 1204
Chiusdino SI 4 1903 3107
Monticiano SI 11 1571 4678
Castelnuovo di Val di Cecina PI 15 2231 6909
Radicondoli SI 15 914 7823
Massa Marittima GR 16 8375 16198
Monterotondo Marittimo GR 16 1371 17569
Roccastrada GR 16 9199 26768

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km SW of Siena (53903 inhabitants)
41 Km N of Grosseto (82087 inhabitants)
71 Km S of Scandicci (50609 inhabitants)
73 Km S of Firenze (382808 inhabitants)
76 Km SE of Livorno (159219 inhabitants)
77 Km W of Arezzo (99543 inhabitants)
84 Km SE of Pisa (89158 inhabitants)
84 Km S of Prato (191150 inhabitants)
90 Km S of Pistoia (90315 inhabitants)
91 Km SE of Lucca (89046 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 1.9 2020-06-15
17:44:50
43.13 11.05 8 2020-06-15
17:55:45
Sala Sismica INGV-Roma 80211011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-15 17:44:50 ± 0.11
Latitude 43.13 ± 0.01
Longitude 11.05 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80211011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 843
Semi-minor axis of confidence ellipse (meter) 676
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 303
Circular confidence region, given by single value of horizontal uncertainty (meter) 840
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 20
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
Epicentral distance of station farthest from the epicenter (degree) 0.78331
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 21
Type of magnitude ML
Reference to an origin 80211011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-15 17:55:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RUFI.EHZ. 2020-06-15T17:45:16.37 0.6 undecidable manual S 25 0.7833 50 0.06 43
IV.MAON.HHZ. 2020-06-15T17:45:14.17 0.6 undecidable manual S 175 0.7024 50 0.28 42
IV.MCIV.CHZ. 2020-06-15T17:45:09.01 0.6 undecidable manual S 127 0.5765 50 -1.15 31
TV.SF01.EHZ. 2020-06-15T17:45:08.05 0.3 undecidable manual S 130 0.491 50 0.42 64
TV.SF04.EHZ. 2020-06-15T17:45:07.87 0.6 undecidable manual S 123 0.5333 50 -1.03 33
IV.RUFI.EHZ. 2020-06-15T17:45:05.65 0.3 undecidable manual P 25 0.7833 50 0.45 60
IV.CELB.HHZ. 2020-06-15T17:45:05.11 3.0 negative manual P 0.5 0
IV.MAON.HHZ. 2020-06-15T17:45:04.64 1.0 undecidable manual P 175 0.7024 50 0.84 17
IV.PII.HHZ. 2020-06-15T17:45:03.89 1.0 positive manual P 327 0.7051 50 0.03 22
IV.CASP.HHZ. 2020-06-15T17:45:03.16 0.6 undecidable manual S 202 0.3633 50 -0.7 40
IV.CRMI.HHE. 2020-06-15T17:45:03.14 0.1 undecidable manual P 356 0.6691 50 -0.1 88
TV.SF04.EHZ. 2020-06-15T17:45:01.19 0.1 positive manual P 123 0.5333 50 0.27 87
IV.MCIV.CHZ. 2020-06-15T17:45:01.98 1.0 negative manual P 127 0.5765 50 0.33 21
TV.SF01.EHZ. 2020-06-15T17:45:00.21 1.0 undecidable manual P 130 0.491 50 0.02 23
IV.CASP.HHZ. 2020-06-15T17:44:58.00 0.1 undecidable manual P 202 0.3633 50 -0.01 95
IV.RIBO.EHZ.01 2020-06-15T17:44:54.72 0.3 negative manual P 181 0.179 113 0.38 69
IV.TRIF.CHZ. 2020-06-15T17:44:54.73 0.6 undecidable manual S 263 0.1088 125 -0.36 47
IV.FROS.CHZ. 2020-06-15T17:44:54.79 0.6 undecidable manual S 43 0.1124 124 -0.42 46
IV.FROS.CHZ. 2020-06-15T17:44:53.03 0.1 negative manual P 43 0.1124 124 0.01 100
IV.TRIF.CHZ. 2020-06-15T17:44:52.98 0.1 positive manual P 263 0.1088 125 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCIV.CHE. ML:1.5 5.775E-5 0.68 AML other m 2020-06-15T17:45:02.57
IV.MCIV.CHN. ML:1.4 4.35E-5 0.58 AML other m 2020-06-15T17:45:11.13
IV.TRIF.CHE. ML:2.2 0.001836933 0.128 AML other m 2020-06-15T17:44:55.54
IV.TRIF.CHN. ML:2.4 0.003116673 0.128 AML other m 2020-06-15T17:44:54.84
IV.FROS.CHE. ML:2.1 0.001624443 0.0896 AML other m 2020-06-15T17:44:54.84
IV.FROS.CHN. ML:2.2 0.0019991795 0.1152 AML other m 2020-06-15T17:44:55.14
IV.RIBO.EHE.01 ML:1.6 0.00034419815 0.128 AML other m 2020-06-15T17:44:57.95
IV.CASP.HHN. ML:1.9 0.0002902069 0.2048 AML other m 2020-06-15T17:45:03.35
IV.CASP.HHE. ML:1.8 0.00020520265 0.1536 AML other m 2020-06-15T17:45:03.56
TV.SF01.EHE. ML:1.9 0.00019404196 0.3328 AML other m 2020-06-15T17:45:08.51
TV.SF01.EHN. ML:1.9 0.0001719342 0.192 AML other m 2020-06-15T17:45:08.42
TV.SF04.EHE. ML:2 0.000201082795 0.2432 AML other m 2020-06-15T17:45:09.84
TV.SF04.EHN. ML:1.7 0.00011549565 0.2944 AML other m 2020-06-15T17:45:11.37
IV.PII.HHN. ML:1.3 3.249043E-5 0.2816 AML other m 2020-06-15T17:45:15.26
IV.PII.HHE. ML:1.4 3.702282E-5 1.0752 AML other m 2020-06-15T17:45:29.64
IV.MAON.HNN. ML:2.1 0.0001757047 0.9856 AML other m 2020-06-15T17:45:22.35
IV.MAON.HHE. ML:1.8 0.000102177445 1.1136 AML other m 2020-06-15T17:45:26.36
IV.MAON.HHN. ML:1.9 0.00010595222 0.2048 AML other m 2020-06-15T17:45:16.01
IV.MAON.HNE. ML:2 0.00015176235 0.896 AML other m 2020-06-15T17:45:13.24
IV.CELB.HHN. ML:1.9 0.00010188549 0.064 AML other m 2020-06-15T17:45:23.17
IV.CELB.HHE. ML:1.8 9.70699E-5 0.064 AML other m 2020-06-15T17:45:24.56
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