Earthquake with magnitude of ML 1.5 on date 25-06-2020 and time 04:41:15 (Italy) in region 4 km W Monterotondo Marittimo (GR)

A magnitude ML 1.5 earthquake occured in region: 4 km W Monterotondo Marittimo (GR), on

  • 25-06-2020 02:41:15 (UTC)
  • 25-06-2020 04:41:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.14, 10.81 at 6 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
Monterotondo Marittimo GR 4 1371 1371
Monteverdi Marittimo PI 9 758 2129
Castelnuovo di Val di Cecina PI 11 2231 4360
Massa Marittima GR 12 8375 12735
Suvereto LI 13 3072 15807
Sassetta LI 14 514 16321
Castagneto Carducci LI 16 9010 25331
Montieri GR 17 1204 26535
Campiglia Marittima LI 18 13218 39753
Pomarance PI 18 5897 45650

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km W of Siena (53903 inhabitants)
49 Km NW of Grosseto (82087 inhabitants)
61 Km SE of Livorno (159219 inhabitants)
72 Km SE of Pisa (89158 inhabitants)
75 Km SW of Scandicci (50609 inhabitants)
78 Km SW of Firenze (382808 inhabitants)
82 Km SE of Lucca (89046 inhabitants)
85 Km S of Prato (191150 inhabitants)
88 Km S of Pistoia (90315 inhabitants)
92 Km SE of Viareggio (62467 inhabitants)
94 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 2020-06-25
02:41:15
43.14 10.81 6 2020-11-19
12:37:02
Bollettino Sismico Italiano INGV 83104361
Reviewed
Rev100
ML 1.5 2020-06-25
02:41:16
43.14 10.85 8 2020-06-25
02:54:57
Sala Sismica INGV-Roma 80482671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-06-25 02:41:15 ± 0.1
Latitude 43.14 ± 0.00
Longitude 10.81 ± 0.01
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83104361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 479
Semi-minor axis of confidence ellipse (meter) 455
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 19
Circular confidence region, given by single value of horizontal uncertainty (meter) 480
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 25
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) 0.80399
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 83104361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-21 13:31:00

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 80482671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-06-25 02:54:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SACR.HHZ. 2020-06-25T02:42:59.43 3.0 undecidable manual Sg 10.13 0
IV.SACR.HHZ. 2020-06-25T02:42:20.00 3.0 undecidable manual Pg 11.63 0
IV.NDIM.HHZ. 2020-06-25T02:42:11.37 3.0 undecidable manual Sg 2.43 0
IV.LRP.EHZ. 2020-06-25T02:41:57.06 3.0 positive manual Pn 0.11 0
IV.ATPI.EHZ. 2020-06-25T02:41:55.29 3.0 undecidable manual S -0.41 0
IV.CELB.HHZ. 2020-06-25T02:41:36.49 0.3 undecidable manual S 228 0.5927 50 -0.37 84
IV.ARCI.HHZ. 2020-06-25T02:41:35.60 0.3 undecidable manual S 121 0.5666 50 -0.51 82
GU.MAIM.HHN. 2020-06-25T02:41:31.47 0.3 undecidable manual P 343 0.804 50 -0.1 85
Z3.A317A.HHE. 2020-06-25T02:41:30.42 0.6 undecidable manual P 263 0.7132 50 0.4 55
TV.SF03.EHZ. 2020-06-25T02:41:30.37 0.3 undecidable manual P 118 0.7249 50 0.14 86
TV.SF14.HHZ. 2020-06-25T02:41:30.05 0.3 undecidable manual P 123 0.7051 50 0.16 86
IV.MAON.HHZ. 2020-06-25T02:41:30.99 0.6 undecidable manual P 162 0.7527 50 0.28 55
IV.MCIV.CHZ. 2020-06-25T02:41:30.60 0.3 undecidable manual P 120 0.7311 50 0.27 84
IV.CASP.HHZ. 2020-06-25T02:41:29.26 0.6 undecidable manual S 174 0.3552 99 -0.4 59
TV.SF01.EHZ. 2020-06-25T02:41:29.03 0.3 undecidable manual P 121 0.6421 50 0.21 86
TV.SF11.HHZ. 2020-06-25T02:41:29.80 0.3 undecidable manual P 113 0.6916 50 0.14 87
TV.SF04.EHZ. 2020-06-25T02:41:29.81 0.3 undecidable manual P 116 0.6934 50 0.12 87
TV.SF13.HHZ. 2020-06-25T02:41:29.56 0.6 undecidable manual P 119 0.6745 50 0.19 57
IV.CELB.HHZ. 2020-06-25T02:41:28.33 0.3 undecidable manual P 228 0.5927 50 0.37 84
IV.CRMI.HNE. 2020-06-25T02:41:28.97 0.6 undecidable manual P 11 0.6628 50 -0.19 58
IV.ARCI.HHZ. 2020-06-25T02:41:27.73 0.3 undecidable manual P 121 0.5666 50 0.21 88
IV.PII.HHZ. 2020-06-25T02:41:27.92 0.6 undecidable manual P 340 0.6133 50 -0.4 56
IV.RIBO.EHZ.01 2020-06-25T02:41:25.93 0.3 undecidable manual S 139 0.2599 102 -0.12 95
IV.FROS.CHZ. 2020-06-25T02:41:25.89 0.3 undecidable manual S 75 0.2599 102 -0.16 94
IV.CSNT.HHZ. 2020-06-25T02:41:25.73 0.3 undecidable manual P 47 0.4793 50 -0.29 88
IV.CASP.HHZ. 2020-06-25T02:41:23.47 0.3 undecidable manual P 174 0.3552 99 -0.33 89
IV.FROS.CHZ. 2020-06-25T02:41:21.69 0.3 undecidable manual P 75 0.2599 102 -0.02 97
IV.RIBO.EHZ.01 2020-06-25T02:41:21.81 0.3 undecidable manual P 139 0.2599 102 0.09 96
IV.TRIF.CHZ. 2020-06-25T02:41:19.31 0.3 undecidable manual S 114 0.0728 128 -0.05 100
IV.TRIF.CHZ. 2020-06-25T02:41:18.18 0.3 undecidable manual P 114 0.0728 128 0.33 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TRIF.CHN. ML:2.4 0.0042767925 0.112 AML other m 2020-06-25T02:41:19.67
IV.TRIF.CHE. ML:2.4 0.0046372425 0.184 AML other m 2020-06-25T02:41:19.70
IV.RIBO.EHE.01 ML:1.9 0.00040329355 0.2192 AML other m 2020-06-25T02:41:26.11
IV.FROS.CHE. ML:1.6 0.0002187724 0.096 AML other m 2020-06-25T02:41:26.31
IV.FROS.CHN. ML:1.8 0.0003601188 0.096 AML other m 2020-06-25T02:41:26.57
IV.CASP.HHE. ML:1.3 6.994542E-5 0.3008 AML other m 2020-06-25T02:41:29.30
IV.CASP.HHN. ML:1.4 9.486052E-5 0.28 AML other m 2020-06-25T02:41:30.47
IV.ARCI.HHN. ML:1.5 5.787009E-5 0.1616 AML other m 2020-06-25T02:41:36.24
IV.ARCI.HHE. ML:1.3 3.851359E-5 1.8608 AML other m 2020-06-25T02:41:37.04
TV.SF01.EHN. ML:1.4 4.289196E-5 0.1392 AML other m 2020-06-25T02:41:39.13
IV.CELB.HHN. ML:1.5 5.8830345E-5 0.08 AML other m 2020-06-25T02:41:39.25
TV.SF01.EHE. ML:1.5 5.008839E-5 0.3008 AML other m 2020-06-25T02:41:39.42
IV.CELB.HHE. ML:1.6 7.1498595E-5 0.08 AML other m 2020-06-25T02:41:39.54
IV.MAON.HHN. ML:1.5 3.814739E-5 0.12 AML other m 2020-06-25T02:41:43.88
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