Earthquake with magnitude of ML 1.6 on date 10-09-2023 and time 14:59:53 (Italy) in region 3 km S Montieri (GR)

A magnitude ML 1.6 earthquake occured in region: 3 km S Montieri (GR), on

  • 10-09-2023 12:59:53 (UTC)
  • 10-09-2023 14:59:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1060, 11.0240 at 10 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 8 1903 3107
Massa Marittima GR 13 8375 11482
Monticiano SI 13 1571 13053
Monterotondo Marittimo GR 14 1371 14424
Castelnuovo di Val di Cecina PI 15 2231 16655
Roccastrada GR 16 9199 25854
Radicondoli SI 17 914 26768

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km SW of Siena (53903 inhabitants)
39 Km N of Grosseto (82087 inhabitants)
74 Km S of Scandicci (50609 inhabitants)
76 Km SE of Livorno (159219 inhabitants)
76 Km S of Firenze (382808 inhabitants)
80 Km SW of Arezzo (99543 inhabitants)
84 Km SE of Pisa (89158 inhabitants)
86 Km S of Prato (191150 inhabitants)
92 Km SE of Lucca (89046 inhabitants)
93 Km S of Pistoia (90315 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
Reviewed
Rev100
ML 1.6 2023-09-10
12:59:53
43.1062 11.0238 10 2023-09-10
13:23:21
Sala Sismica INGV-Roma 120945471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-10 12:59:53 ± 0.12
Latitude 43.1062 ± 0.0063
Longitude 11.0238 ± 0.0111
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120945471

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 789
Semi-minor axis of confidence ellipse (meter) 646
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 266
Circular confidence region, given by single value of horizontal uncertainty (meter) 790.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.17092
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 120945471
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-10 13:23:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CMPR.HHZ. 2023-09-10T13:01:47.39 3.0 undecidable manual Sn 0.63 0
OX.CIMO.HHZ. 2023-09-10T13:01:38.87 3.0 undecidable manual Sg 13.79 0
MN.TRI.HHZ. 2023-09-10T13:01:21.94 3.0 undecidable manual Sn -0.6 0
IV.BAG8.EHZ. 2023-09-10T13:01:12.71 3.0 undecidable manual Sn 2.54 0
IV.SLCN.HHZ. 2023-09-10T13:01:08.72 3.0 negative manual Pg 9.69 0
IV.CIGN.HHZ. 2023-09-10T13:00:51.49 3.0 negative manual Pg 8.52 0
IV.SEI.HHZ. 2023-09-10T13:00:26.46 3.0 undecidable manual S -0.44 0
IV.CAMP.HHZ. 2023-09-10T13:00:23.82 3.0 undecidable manual Pn -0.24 0
IV.ASSB.HHZ. 2023-09-10T13:00:19.02 3.0 undecidable manual P 3.84 0
IV.CAFI.HHZ. 2023-09-10T13:00:17.53 0.3 undecidable manual S 72 80.0643 50 0.1 66
IV.CRMI.HNE. 2023-09-10T13:00:16.80 0.3 undecidable manual S 357 76.5678 50 0.31 64
IV.PII.HHE. 2023-09-10T13:00:16.48 0.3 undecidable manual S 330 79.2651 50 -0.73 56
IV.MOMA.HHZ. 2023-09-10T13:00:14.78 0.6 undecidable manual P 104 129.9699 50 -0.17 39
IV.PARC.HHZ. 2023-09-10T13:00:13.50 0.1 undecidable manual P 58 114.996 50 0.85 66
IV.ATMI.HHZ. 2023-09-10T13:00:12.37 3.0 negative manual P 0.8 0
IV.MGAB.HHZ. 2023-09-10T13:00:09.20 0.1 undecidable manual P 103 90.8424 50 0.27 84
IV.OSSC.HHZ. 2023-09-10T13:00:09.01 0.3 undecidable manual S 21 49.617 50 -0.29 67
IV.CAFI.HHZ. 2023-09-10T13:00:07.59 0.1 negative manual P 72 80.0643 50 0.31 84
IV.CSNT.HHZ. 2023-09-10T13:00:07.81 0.3 undecidable manual S 28 46.0206 50 -0.53 64
IV.CRMI.HNE. 2023-09-10T13:00:07.30 0.1 undecidable manual P 357 76.5678 50 0.57 80
IV.PII.HHE. 2023-09-10T13:00:06.52 0.1 undecidable manual P 330 79.2651 50 -0.63 77
IV.SACS.HHZ. 2023-09-10T13:00:06.49 0.1 undecidable manual P 111 77.367 50 -0.36 84
IV.CASP.HHZ. 2023-09-10T13:00:05.59 0.3 undecidable manual S 200 37.2294 50 -0.41 67
IV.MALA2.EHZ. 2023-09-10T13:00:04.31 3.0 undecidable manual S 107 38.5281 50 -2.03 0
IV.ARCI.HHZ. 2023-09-10T13:00:02.10 3.0 negative manual P -0.04 0
IV.CSNT.HHZ. 2023-09-10T13:00:02.19 0.1 undecidable manual P 28 46.0206 50 0.16 93
IV.OSSC.HHZ. 2023-09-10T13:00:02.94 0.3 negative manual P 21 49.617 50 0.36 66
IV.CASP.HHZ. 2023-09-10T13:00:01.06 0.1 positive manual P 200 37.2294 50 0.38 90
IV.MALA2.EHZ. 2023-09-10T13:00:00.68 0.1 negative manual P 107 38.5281 50 -0.19 94
IV.FROS.CHZ. 2023-09-10T12:59:59.07 0.6 undecidable manual S 43 15.6732 123 -0.84 40
IV.RIBO.EHZ.01 2023-09-10T12:59:59.84 0.6 undecidable manual S 174 17.5713 120 -0.61 44
IV.TRIF.CHZ. 2023-09-10T12:59:58.32 0.6 undecidable manual S 276 9.879 136 -0.02 51
IV.FROS.CHZ. 2023-09-10T12:59:57.10 0.1 negative manual P 43 15.6732 123 -0.06 100
IV.RIBO.EHZ.01 2023-09-10T12:59:57.48 1.0 undecidable manual P 174 17.5713 120 0.01 25
IV.TRIF.CHZ. 2023-09-10T12:59:56.72 0.1 negative manual P 276 9.879 136 0.46 93
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TRIF.CHE. ML:2.5 0.0042699999999999995 0.08 AML other m 2023-09-10T13:00:02.28
IV.TRIF.CHN. ML:2.5 0.004045 0.14 AML other m 2023-09-10T13:00:02.62
IV.FROS.CHN. ML:2.3 0.0019649999999999997 0.4 AML other m 2023-09-10T13:00:03.38
IV.RIBO.EHN. ML:1.8 0.0005304999999999999 0.1 AML other m 2023-09-10T13:00:03.67
IV.RIBO.EHE. ML:1.8 0.00046950000000000003 0.12 AML other m 2023-09-10T13:00:03.65
IV.FROS.CHE. ML:2.2 0.001495 1.4 AML other m 2023-09-10T13:00:03.18
IV.CASP.HHE. ML:2.0 0.000415 1.68 AML other m 2023-09-10T13:00:05.84
IV.CASP.HHN. ML:1.9 0.000275 0.28 AML other m 2023-09-10T13:00:05.83
IV.MALA2.EHN. ML:1.8 0.00023799999999999998 0.52 AML other m 2023-09-10T13:00:06.06
IV.MALA2.EHE. ML:1.8 0.0002455 0.9 AML other m 2023-09-10T13:00:06.62
IV.CSNT.HHN. ML:1.6 0.00011415 0.68 AML other m 2023-09-10T13:00:08.07
IV.OSSC.HHN. ML:1.4 0.00006405 0.46 AML other m 2023-09-10T13:00:09.41
IV.OSSC.HHE. ML:1.6 0.00010345 0.54 AML other m 2023-09-10T13:00:09.99
IV.CSNT.HHE. ML:1.4 0.00007955000000000001 1.04 AML other m 2023-09-10T13:00:11.33
IV.CAFI.HHE. ML:1.3 0.0000275 0.68 AML other m 2023-09-10T13:00:12.38
IV.SACS.HHN. ML:1.2 0.00002605 1.7 AML other m 2023-09-10T13:00:14.09
IV.MGAB.HHN. ML:1.5 0.00003665 0.16 AML other m 2023-09-10T13:00:14.62
IV.MGAB.HHE. ML:1.5 0.0000363 1.22 AML other m 2023-09-10T13:00:14.90
IV.CAFI.HHN. ML:1.3 0.0000252 0.96 AML other m 2023-09-10T13:00:15.21
IV.SACS.HHE. ML:1.2 0.0000273 0.3 AML other m 2023-09-10T13:00:15.86
IV.PARC.HHE. ML:1.3 0.000015050000000000002 0.5 AML other m 2023-09-10T13:00:20.57
IV.CRE.HHE. ML:1.4 0.00003205 1.1 AML other m 2023-09-10T13:00:26.20
IV.CRE.HHN. ML:1.6 0.000037699999999999995 1.18 AML other m 2023-09-10T13:00:27.12
IV.MOMA.HHE. ML:1.5 0.00002145 0.94 AML other m 2023-09-10T13:00:29.62
IV.MOMA.HHN. ML:1.9 0.000048849999999999995 0.94 AML other m 2023-09-10T13:00:30.06
IV.PARC.HHN. ML:1.3 0.00001545 0.6 AML other m 2023-09-10T13:00:36.51
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download