Earthquake with magnitude of ML 2.0 on date 08-09-2020 and time 12:01:15 (Italy) in region 3 km NW Monterotondo Marittimo (GR)

A magnitude ML 2.0 earthquake occured in region: 3 km NW Monterotondo Marittimo (GR), on

  • 08-09-2020 10:01:15 (UTC)
  • 08-09-2020 12:01:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1700, 10.8300 at 7 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 3 1371 1371
Castelnuovo di Val di Cecina PI 8 2231 3602
Monteverdi Marittimo PI 9 758 4360
Massa Marittima GR 14 8375 12735
Pomarance PI 15 5897 18632
Suvereto LI 16 3072 21704
Sassetta LI 16 514 22218
Montieri GR 16 1204 23422
Castagneto Carducci LI 18 9010 32432

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km W of Siena (53903 inhabitants)
51 Km NW of Grosseto (82087 inhabitants)
60 Km SE of Livorno (159219 inhabitants)
70 Km SE of Pisa (89158 inhabitants)
71 Km SW of Scandicci (50609 inhabitants)
75 Km SW of Firenze (382808 inhabitants)
80 Km SE of Lucca (89046 inhabitants)
82 Km S of Prato (191150 inhabitants)
85 Km S of Pistoia (90315 inhabitants)
91 Km SE of Viareggio (62467 inhabitants)
91 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 2.0 2020-09-08
10:01:15
43.17 10.8298 7 2021-02-26
14:56:06
Bollettino Sismico Italiano INGV 84771571
Reviewed
Rev100
ML 2.0 2020-09-08
10:01:15
43.1577 10.8018 3 2020-09-08
10:28:03
Sala Sismica INGV-Roma 82731811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-08 10:01:15 ± 0.13
Latitude 43.1700 ± 0.0072
Longitude 10.8298 ± 0.0099
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84771571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 949
Semi-minor axis of confidence ellipse (meter) 380
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 51
Circular confidence region, given by single value of horizontal uncertainty (meter) 950.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.87594
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 82731811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-08 10:28:03

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 17
Type of magnitude ML
Reference to an origin 84771571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-16 12:51:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LPDG.HHZ. 2020-09-08T10:03:00.04 3.0 negative manual Pn -2.37 0
IV.CMPR.HHZ. 2020-09-08T10:02:55.86 3.0 undecidable manual Sn -5.36 0
IV.MTMR.EHZ. 2020-09-08T10:02:54.35 3.0 undecidable manual Sg 7.74 0
CR.ZAG.BHZ. 2020-09-08T10:02:52.58 3.0 undecidable manual Sn -1.8 0
IV.PTRJ.HHZ. 2020-09-08T10:02:45.92 3.0 undecidable manual Sg 13.2 0
IV.PAOL.HHZ. 2020-09-08T10:02:42.12 3.0 undecidable manual Sn 3.03 0
MN.CLTB.HHZ. 2020-09-08T10:02:39.17 3.0 negative manual Pn 3.69 0
IV.SENA.HHZ. 2020-09-08T10:02:36.24 3.0 undecidable manual Sn -4.58 0
IV.MTTG.HHZ. 2020-09-08T10:02:36.23 3.0 undecidable manual Pn -3.25 0
IV.SOI.EHZ. 2020-09-08T10:02:36.26 3.0 undecidable manual Pn -4.31 0
OX.CIMO.HHZ. 2020-09-08T10:02:32.46 3.0 undecidable manual Sg 3.76 0
XK.GIZZ.HHZ. 2020-09-08T10:02:27.55 3.0 undecidable manual Pn -3.6 0
IV.PZUN.HHZ. 2020-09-08T10:02:19.13 3.0 negative manual Pg 7.92 0
GU.GORR.HHZ. 2020-09-08T10:02:13.06 3.0 undecidable manual Sg 7.39 0
IV.CMPR.HHZ. 2020-09-08T10:02:10.77 3.0 undecidable manual Pn -0.03 0
IV.MTMR.EHZ. 2020-09-08T10:02:09.08 3.0 positive manual Pg 6.49 0
OX.CLUD.HHZ. 2020-09-08T10:01:57.30 3.0 negative manual Pn 1.71 0
Z3.A317A.HHE. 2020-09-08T10:01:40.97 0.3 undecidable manual S 261 81.0522 50 0.23 65
IV.ZOVE.EHZ. 2020-09-08T10:01:39.33 3.0 undecidable manual Pn -0.4 0
IV.CRMI.HNN. 2020-09-08T10:01:37.97 0.6 undecidable manual S 10 70.4739 50 0.07 46
IV.ARCI.HHZ. 2020-09-08T10:01:35.30 0.6 undecidable manual S 124 63.1923 50 -0.66 40
GU.POPM.HHZ. 2020-09-08T10:01:33.57 0.6 undecidable manual P 357 97.2249 50 0.89 34
Z3.A317A.HHE. 2020-09-08T10:01:31.03 0.6 undecidable manual P 261 81.0522 50 0.85 36
IV.CSNT.HHZ. 2020-09-08T10:01:31.56 0.6 undecidable manual S 48 50.1165 50 -0.92 37
TV.SF04.EHZ. 2020-09-08T10:01:30.21 0.3 undecidable manual P 119 76.9674 50 0.67 58
IV.CASP.HHZ. 2020-09-08T10:01:29.62 0.3 undecidable manual S 176 42.1245 50 -0.73 60
IV.ARCI.HHZ. 2020-09-08T10:01:28.07 0.6 undecidable manual P 124 63.1923 50 0.65 40
IV.CRMI.HNN. 2020-09-08T10:01:28.71 0.3 undecidable manual P 10 70.4739 50 0.17 67
IV.PII.HHZ. 2020-09-08T10:01:27.91 0.3 undecidable manual P 338 65.9895 50 0.05 70
IV.RIBO.EHZ.01 2020-09-08T10:01:26.09 0.3 undecidable manual S 144 30.1476 103 -0.42 69
IV.CSNT.HHZ. 2020-09-08T10:01:25.25 0.3 undecidable manual P 48 50.1165 50 -0.16 70
IV.FROS.CHZ. 2020-09-08T10:01:25.22 0.6 undecidable manual S 80 26.751 105 -0.15 49
IV.CASP.HHZ. 2020-09-08T10:01:23.74 0.3 undecidable manual P 176 42.1245 50 -0.45 67
IV.RIBO.EHZ.01 2020-09-08T10:01:22.82 0.1 undecidable manual P 144 30.1476 103 0.85 78
IV.FROS.CHZ. 2020-09-08T10:01:21.39 0.1 undecidable manual P 80 26.751 105 0.08 99
IV.MAGO.CHZ. 2020-09-08T10:01:21.66 0.3 undecidable manual S 310 17.9709 112 -0.82 61
IV.MAGO.CHZ. 2020-09-08T10:01:19.53 0.1 positive manual P 310 17.9709 112 -0.11 100
IV.PE3.EHZ. 2020-09-08T10:01:19.55 3.0 negative manual P -1.73 0
IV.TRIF.CHZ. 2020-09-08T10:01:19.42 0.3 undecidable manual S 136 8.4804 130 -0.18 75
IV.TRIF.CHZ. 2020-09-08T10:01:18.23 0.1 positive manual P 136 8.4804 130 0.25 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARCI.HHE. ML:1.5 0.000061737735 0.2816 AML other m 2020-09-08T10:01:41.71
IV.TRIF.CHN. ML:2.4 0.004308666000000001 0.2432 AML other m 2020-09-08T10:01:21.94
IV.TRIF.CHE. ML:2.5 0.0049188834999999995 0.2432 AML other m 2020-09-08T10:01:21.12
IV.MAGO.CHE. ML:2.2 0.0013629945000000001 0.1664 AML other m 2020-09-08T10:01:22.70
IV.MAGO.CHN. ML:2.2 0.0013153000000000001 0.1344 AML other m 2020-09-08T10:01:23.24
IV.FROS.CHN. ML:2.2 0.0007999290999999999 0.1536 AML other m 2020-09-08T10:01:26.52
IV.FROS.CHE. ML:2.0 0.0005523369 0.2432 AML other m 2020-09-08T10:01:28.70
IV.RIBO.EHE.01 ML:2.2 0.0007952411 0.2368 AML other m 2020-09-08T10:01:28.51
IV.CASP.HHE. ML:1.9 0.0002687796 0.2368 AML other m 2020-09-08T10:01:30.79
IV.CASP.HHN. ML:2.1 0.0003773702 0.32 AML other m 2020-09-08T10:01:30.27
IV.ARCI.HNE. ML:1.9 0.00015439150000000001 0.736 AML other m 2020-09-08T10:01:43.02
IV.ARCI.HNN. ML:2.0 0.000182967515 0.2688 AML other m 2020-09-08T10:01:38.99
IV.ARCI.HHN. ML:1.7 0.00010430204 0.2432 AML other m 2020-09-08T10:01:38.99
TV.SF04.EHE. ML:2.2 0.0002157598 0.2368 AML other m 2020-09-08T10:01:30.80
TV.SF04.EHN. ML:2.0 0.00016698705000000002 0.1408 AML other m 2020-09-08T10:01:31.33
GU.POPM.HHN. ML:1.6 0.000041469335 0.224 AML other m 2020-09-08T10:01:46.85
GU.POPM.HHE. ML:1.7 0.000049412485 0.32 AML other m 2020-09-08T10:01:47.53
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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