Earthquake with magnitude of ML 1.1 on date 06-05-2019 and time 20:44:23 (Italy) in region 7 km E Monteverdi Marittimo (PI)

A magnitude ML 1.1 earthquake occured in region: 7 km E Monteverdi Marittimo (PI), on

  • 06-05-2019 18:44:23 (UTC)
  • 06-05-2019 20:44:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.19, 10.8 at 4 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
Monteverdi Marittimo PI 7 758 758
Monterotondo Marittimo GR 7 1371 2129
Castelnuovo di Val di Cecina PI 9 2231 4360
Sassetta LI 14 514 4874
Pomarance PI 14 5897 10771
Suvereto LI 15 3072 13843
Castagneto Carducci LI 15 9010 22853
Massa Marittima GR 17 8375 31228
Bibbona LI 18 3175 34403
Montieri GR 19 1204 35607
Casale Marittimo PI 19 1122 36729
Guardistallo PI 19 1234 37963

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km W of Siena (53903 inhabitants)
54 Km NW of Grosseto (82087 inhabitants)
57 Km SE of Livorno (159219 inhabitants)
67 Km SE of Pisa (89158 inhabitants)
71 Km SW of Scandicci (50609 inhabitants)
75 Km SW of Firenze (382808 inhabitants)
77 Km SE of Lucca (89046 inhabitants)
81 Km SW of Prato (191150 inhabitants)
84 Km S of Pistoia (90315 inhabitants)
88 Km SE of Viareggio (62467 inhabitants)
93 Km W of Arezzo (99543 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 1.1 2019-05-06
18:44:23
43.19 10.8 4 2019-05-06
18:52:25
Sala Sismica INGV-Roma 68313771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-05-06 18:44:23 ± 0.11
Latitude 43.19 ± 0.01
Longitude 10.80 ± 0.01
Depth (km) 4 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 68313771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 822
Semi-minor axis of confidence ellipse (meter) 476
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 205
Circular confidence region, given by single value of horizontal uncertainty (meter) 820
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 134
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.61334
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 68313771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-05-06 18:52:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.DGI.HHZ. 2019-05-06T18:45:50.64 3.0 undecidable manual Sn 4.85 0
IV.ORI.HHZ. 2019-05-06T18:45:45.07 3.0 undecidable manual Pn 7.05 0
IV.EUCT.HNZ. 2019-05-06T18:45:30.59 3.0 undecidable manual Sn 3.77 0
IV.MSSA.HHZ. 2019-05-06T18:45:06.52 3.0 undecidable manual S 0.76 0
IV.PE3.EHZ. 2019-05-06T18:44:59.75 3.0 undecidable manual S -0.16 0
IV.CASP.HHZ. 2019-05-06T18:44:37.27 3.0 undecidable manual P 0
IV.CELB.HHZ. 2019-05-06T18:44:35.74 0.3 undecidable manual P 224 0.6133 50 -0.08 69
IV.FROS.CHZ. 2019-05-06T18:44:33.28 0.3 undecidable manual S 85 0.2635 98 0 76
IV.FIR.HHZ. 2019-05-06T18:44:32.63 3.0 undecidable manual P -0.12 0
IV.MAGO.CHZ. 2019-05-06T18:44:28.04 0.6 undecidable manual S 311 0.1322 106 -0.27 49
IV.FROS.CHZ. 2019-05-06T18:44:28.88 0.1 undecidable manual P 85 0.2635 98 -0.06 100
IV.TRIF.CHZ. 2019-05-06T18:44:27.17 0.3 undecidable manual S 133 0.1061 109 -0.19 75
IV.MAGO.CHZ. 2019-05-06T18:44:26.24 0.1 undecidable manual P 311 0.1322 106 0.17 100
IV.TRIF.CHZ. 2019-05-06T18:44:25.75 0.1 positive manual P 133 0.1061 109 0.23 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TRIF.CHE. ML:1.2 0.0002218857 0.1152 AML other m 2019-05-06T18:44:28.24
IV.TRIF.CHN. ML:1.1 0.0001705709 0.0768 AML other m 2019-05-06T18:44:27.88
IV.MAGO.CHE. ML:1.1 0.0001347113 0.1152 AML other m 2019-05-06T18:44:28.74
IV.MAGO.CHN. ML:0.8 6.642891E-5 0.1408 AML other m 2019-05-06T18:44:28.19
IV.FIR.HHE. ML:2 0.0001712523 0.1408 AML other m 2019-05-06T18:44:38.35
IV.FIR.HNE. ML:2.1 0.0001732823 0.2176 AML other m 2019-05-06T18:44:38.29
IV.CELB.HHE. ML:1.2 2.2738305E-5 0.064 AML other m 2019-05-06T18:44:46.11
IV.CELB.HHN. ML:1.4 3.858741E-5 1.0112 AML other m 2019-05-06T18:44:46.22
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