Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 10-04-2023 and time 01:57:35 (UTC) in region 2 km SE Montieri (GR)

A magnitude ML 2.2 earthquake occured in region: 2 km SE Montieri (GR), on

  • 10-04-2023 01:57:35 (UTC)
  • 10-04-2023 03:57:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1190, 11.0290 at 10 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.

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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 2 1204 1204
Chiusdino SI 6 1903 3107
Monticiano SI 13 1571 4678
Massa Marittima GR 14 8375 13053
Castelnuovo di Val di Cecina PI 14 2231 15284
Monterotondo Marittimo GR 14 1371 16655
Radicondoli SI 16 914 17569
Roccastrada GR 16 9199 26768

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km SW of Siena (53903 inhabitants)
40 Km N of Grosseto (82087 inhabitants)
72 Km S of Scandicci (50609 inhabitants)
75 Km S of Firenze (382808 inhabitants)
76 Km SE of Livorno (159219 inhabitants)
79 Km W of Arezzo (99543 inhabitants)
84 Km SE of Pisa (89158 inhabitants)
85 Km S of Prato (191150 inhabitants)
91 Km S of Pistoia (90315 inhabitants)
91 Km SE of Lucca (89046 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 2.2 2023-04-10
01:57:35		 43.1192 11.0292 10 2024-03-01
17:18:05		 Bollettino Sismico Italiano INGV 116760981
Reviewed
Rev100 		ML 2.2 2023-04-10
01:57:35		 43.133 11.0303 10 2023-04-10
02:12:50		 Sala Sismica INGV-Roma 116226361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-10 01:57:35 ± 0.1
Latitude 43.1192 ± 0.0045
Longitude 11.0292 ± 0.0074
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116760981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 505
Semi-minor axis of confidence ellipse (meter) 380
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 239
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 51
Number of associated phases, regardless of their use for origin computation 57
Number of defining phases 57
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.09263
Epicentral distance of station farthest from the epicenter (degree) 1.58730
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 38
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 58
Type of magnitude ML
Reference to an origin 116226361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-10 02:12:50

ML:2.2

Field Value
Value 2.2
Uncertainty 0.4
Num. used stations 62
Type of magnitude ML
Reference to an origin 116760981
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-22 10:20:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.POPM.HHZ. 2023-04-10T01:58:06.14 0.6 undecidable manual S 348 105.0171 50 0.1 42
IV.CSP1.EHZ. 2023-04-10T01:58:03.92 0.6 undecidable manual P 90 176.1903 50 -0.12 34
IV.NRCA.HHZ. 2023-04-10T01:58:03.02 0.3 undecidable manual P 100 172.1943 50 -0.39 49
IV.BOSL.HHZ. 2023-04-10T01:58:03.11 0.6 undecidable manual S 17 94.239 50 -0.05 44
IV.RUFI.EHZ. 2023-04-10T01:58:01.69 0.6 undecidable manual S 26 88.6446 50 0.02 45
IV.CELB.HHZ. 2023-04-10T01:57:59.03 0.6 undecidable manual S 238 78.2661 50 0.12 45
IV.PII.HHZ. 2023-04-10T01:57:58.59 0.6 undecidable manual S 329 78.2661 50 -0.3 43
IV.PLMA.HHZ. 2023-04-10T01:57:58.02 0.3 undecidable manual P 318 139.9488 50 -0.42 55
GU.EQUI.HHZ. 2023-04-10T01:57:57.49 0.6 undecidable manual P 329 135.7641 50 -0.31 38
IV.CRMI.HHZ. 2023-04-10T01:57:57.42 0.6 undecidable manual S 357 75.1692 50 -0.65 39
IV.MCIV.CHZ. 2023-04-10T01:57:56.09 0.6 undecidable manual S 125 64.7907 50 0.8 37
IV.ATFO.HHZ. 2023-04-10T01:57:56.85 0.6 undecidable manual P 77 127.5723 50 0.3 39
IV.MURB.HHZ. 2023-04-10T01:57:56.10 0.3 undecidable manual P 82 121.989 50 0.42 58
IV.LMD.HHZ. 2023-04-10T01:57:55.71 0.1 positive manual P 27 119.4915 50 0.42 77
IV.PARC.HHZ. 2023-04-10T01:57:54.96 0.3 undecidable manual P 59 113.7972 50 0.54 57
TV.SF11.HHZ. 2023-04-10T01:57:54.61 0.6 undecidable manual S 118 59.5959 50 0.69 40
IV.SFI.EHZ. 2023-04-10T01:57:54.17 0.1 undecidable manual P 37 109.2129 50 0.46 78
IV.BDI.HHZ. 2023-04-10T01:57:54.04 0.3 undecidable manual P 342 110.3118 50 0.16 62
GU.POPM.HHZ. 2023-04-10T01:57:53.33 0.3 undecidable manual P 348 105.0171 50 0.27 62
IV.ATMI.HHZ. 2023-04-10T01:57:53.55 0.3 undecidable manual P 76 102.9192 50 0.81 52
IV.SEI.HHZ. 2023-04-10T01:57:53.91 0.3 undecidable manual P 14 107.0151 50 0.53 58
IV.SSP9.EHZ. 2023-04-10T01:57:53.26 0.3 undecidable manual P 60 102.2199 50 0.63 56
GU.CARD.HHZ. 2023-04-10T01:57:53.81 0.3 undecidable manual P 337 109.8123 50 0.01 64
IV.VMGN.HHZ. 2023-04-10T01:57:53.13 0.3 undecidable manual P 23 101.121 50 0.67 55
GU.MAIM.HHZ. 2023-04-10T01:57:52.03 0.1 undecidable manual P 334 98.124 50 0.03 87
IV.CRE.HHZ. 2023-04-10T01:57:51.78 0.3 undecidable manual P 53 92.7405 50 0.6 58
IV.BOSL.HHZ. 2023-04-10T01:57:51.49 0.3 undecidable manual P 17 94.239 50 0.09 65
IV.RUFI.EHZ. 2023-04-10T01:57:50.64 0.1 undecidable manual P 26 88.6446 50 0.1 88
IV.SACS.HHZ. 2023-04-10T01:57:49.22 0.3 undecidable manual P 112 77.4669 50 0.4 63
IV.OSSC.HHZ. 2023-04-10T01:57:49.92 0.6 undecidable manual S 21 48.1185 50 -0.94 36
IV.CELB.HHZ. 2023-04-10T01:57:49.72 0.1 undecidable manual P 238 78.2661 50 0.78 74
IV.CAFI.HHZ. 2023-04-10T01:57:49.20 0.1 positive manual P 73 79.2651 50 0.11 89
IV.ARCI.HHZ. 2023-04-10T01:57:49.95 0.6 undecidable manual S 129 46.8198 50 -0.56 43
IV.CASP.HHZ. 2023-04-10T01:57:48.03 0.3 undecidable manual S 200 38.8278 50 -0.33 69
IV.PII.HHZ. 2023-04-10T01:57:48.90 0.1 undecidable manual P 329 78.2661 50 -0.04 91
IV.CRMI.HHZ. 2023-04-10T01:57:48.23 0.1 undecidable manual P 357 75.1692 50 -0.23 88
IV.CSNT.HHZ. 2023-04-10T01:57:48.65 0.6 undecidable manual S 28 44.5221 50 -1.25 31
IV.MCIV.CHZ. 2023-04-10T01:57:47.24 0.1 negative manual P 125 64.7907 50 0.38 87
IV.MALA4.EHZ. 2023-04-10T01:57:47.50 0.6 undecidable manual S 109 38.4282 50 -0.78 40
IV.MALA2.EHZ. 2023-04-10T01:57:47.62 0.6 undecidable manual S 109 38.628 50 -0.69 41
IV.MALA5.EHN. 2023-04-10T01:57:47.47 0.6 undecidable manual S 109 38.4282 50 -0.81 39
IV.MALA1.EHN. 2023-04-10T01:57:47.44 0.6 undecidable manual S 109 38.5281 50 -0.84 39
IV.MALA0.EHN. 2023-04-10T01:57:47.36 0.6 undecidable manual S 109 38.1285 50 -0.84 39
TV.SF11.HHZ. 2023-04-10T01:57:46.32 0.1 negative manual P 118 59.5959 50 0.26 90
IV.ARCI.HHZ. 2023-04-10T01:57:44.24 0.1 negative manual P 129 46.8198 50 0.15 94
IV.OSSC.HHZ. 2023-04-10T01:57:43.93 0.1 positive manual P 21 48.1185 50 -0.37 90
IV.CSNT.HHZ. 2023-04-10T01:57:43.31 0.1 positive manual P 28 44.5221 50 -0.44 89
IV.CASP.HHZ. 2023-04-10T01:57:43.05 0.1 undecidable manual P 200 38.8278 50 0.19 95
IV.MALA5.EHN. 2023-04-10T01:57:42.63 0.1 negative manual P 109 38.4282 50 -0.17 95
IV.MALA0.EHN. 2023-04-10T01:57:42.60 0.1 negative manual P 109 38.1285 50 -0.16 95
IV.MALA2.EHZ. 2023-04-10T01:57:42.68 0.1 undecidable manual P 109 38.628 50 -0.15 96
IV.RIBO.EHZ.01 2023-04-10T01:57:42.34 0.6 undecidable manual S 176 18.9699 118 -0.43 46
IV.MALA1.EHN. 2023-04-10T01:57:42.66 0.1 negative manual P 109 38.5281 50 -0.15 95
IV.MALA4.EHZ. 2023-04-10T01:57:42.65 0.1 negative manual P 109 38.4282 50 -0.16 95
IV.RIBO.EHZ.01 2023-04-10T01:57:39.81 0.1 undecidable manual P 176 18.9699 118 0.18 98
IV.TRIF.CHZ. 2023-04-10T01:57:39.61 0.3 undecidable manual S 267 10.2786 135 -0.71 64
IV.TRIF.CHZ. 2023-04-10T01:57:38.05 0.1 undecidable manual P 267 10.2786 135 -0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TRIF.CHN. ML:3.0 0.01255 1.88 AML other m 2023-04-10T01:57:39.94
IV.TRIF.CHE. ML:3.1 0.01525 0.22 AML other m 2023-04-10T01:57:40.17
IV.RIBO.EHE.01 ML:3.1 0.009788996000000001 0.2208 AML other m 2023-04-10T01:57:42.96
IV.RIBO.EHN.01 ML:3.1 0.009685368 0.1392 AML other m 2023-04-10T01:57:43.03
IV.MALA2.EHN. ML:2.4 0.0009390000000000001 0.16 AML other m 2023-04-10T01:57:48.03
IV.MALA2.EHE. ML:2.4 0.0009099262499999999 0.2 AML other m 2023-04-10T01:57:48.06
IV.CASP.HHE. ML:2.7 0.0016552045 0.12 AML other m 2023-04-10T01:57:48.46
IV.CASP.HHN. ML:3.0 0.0038180775 0.2608 AML other m 2023-04-10T01:57:48.39
IV.CSNT.HHN. ML:2.6 0.00127 1.46 AML other m 2023-04-10T01:57:48.92
IV.CSNT.HHE. ML:2.5 0.0010405 0.52 AML other m 2023-04-10T01:57:49.29
IV.OSSC.HHE. ML:2.3 0.0005166776 0.24 AML other m 2023-04-10T01:57:50.06
IV.OSSC.HHN. ML:2.2 0.00039592275 0.24 AML other m 2023-04-10T01:57:50.65
IV.ARCI.HHE. ML:2.6 0.0012243247 0.2 AML other m 2023-04-10T01:57:50.88
IV.ARCI.HNE. ML:2.6 0.0011924661000000001 0.2096 AML other m 2023-04-10T01:57:50.88
IV.ARCI.HHN. ML:2.4 0.0007883905 1.7392 AML other m 2023-04-10T01:57:52.96
IV.ARCI.HNN. ML:2.4 0.0008142544000000001 1.7184 AML other m 2023-04-10T01:57:52.10
TV.SF11.HHE. ML:2.9 0.001749495 0.2816 AML other m 2023-04-10T01:57:55.70
TV.SF11.HHN. ML:2.6 0.0007641416000000001 0.2592 AML other m 2023-04-10T01:57:56.07
IV.MCIV.CHE. ML:2.5 0.0005965 0.36 AML other m 2023-04-10T01:57:57.65
IV.CAFI.HHN. ML:1.6 0.0000601533 0.2592 AML other m 2023-04-10T01:57:58.71
IV.MCIV.CHN. ML:2.4 0.0005055000000000001 0.24 AML other m 2023-04-10T01:57:58.78
IV.CAFI.HHE. ML:1.5 0.000045623070000000005 0.24 AML other m 2023-04-10T01:57:59.28
IV.CRMI.HHE. ML:1.7 0.00008200048 0.2992 AML other m 2023-04-10T01:57:59.46
IV.CRMI.HNE. ML:2.0 0.000142747135 0.3104 AML other m 2023-04-10T01:57:59.47
IV.PII.HHN. ML:2.4 0.0003805 0.3 AML other m 2023-04-10T01:57:59.57
IV.CRMI.HHN. ML:1.8 0.000088 1.6 AML other m 2023-04-10T01:57:59.17
IV.CELB.HHN. ML:2.6 0.00063297005 0.24 AML other m 2023-04-10T01:58:01.53
IV.SACS.HHE. ML:1.7 0.000072026275 0.4992 AML other m 2023-04-10T01:58:02.57
IV.PII.HHE. ML:2.2 0.0002265 0.38 AML other m 2023-04-10T01:58:02.39
IV.RUFI.EHE. ML:1.8 0.00007317891 0.2208 AML other m 2023-04-10T01:58:02.60
IV.CELB.HHE. ML:2.4 0.00039056445000000003 0.0608 AML other m 2023-04-10T01:58:02.78
IV.SACS.HHN. ML:1.5 0.000045799265 0.44 AML other m 2023-04-10T01:58:03.65
IV.SACS.HNE. ML:2.0 0.00014989755 0.4304 AML other m 2023-04-10T01:58:04.28
GU.MAIM.HHE. ML:1.7 0.000056 0.78 AML other m 2023-04-10T01:58:04.33
IV.RUFI.EHN. ML:2.0 0.00011400331 0.6608 AML other m 2023-04-10T01:58:04.57
IV.BOSL.HHE. ML:1.6 0.0000458 0.88 AML other m 2023-04-10T01:58:05.03
GU.MAIM.HHN. ML:1.8 0.000063110865 1.68 AML other m 2023-04-10T01:58:05.95
IV.CRE.HHN. ML:2.2 0.00018099999999999998 1.66 AML other m 2023-04-10T01:58:07.99
IV.CRE.HHE. ML:2.2 0.00016800000000000002 0.28 AML other m 2023-04-10T01:58:08.15
GU.POPM.HHE. ML:2.2 0.0001414726 0.28 AML other m 2023-04-10T01:58:08.46
IV.BDI.HHN. ML:2.0 0.00008460000000000001 1.02 AML other m 2023-04-10T01:58:08.16
IV.BOSL.HHN. ML:1.7 0.00005475 0.38 AML other m 2023-04-10T01:58:09.40
GU.POPM.HHN. ML:2.1 0.0001255 0.48 AML other m 2023-04-10T01:58:09.27
GU.CARD.HHN. ML:2.1 0.00011251215 0.32 AML other m 2023-04-10T01:58:09.93
IV.VMGN.HHN. ML:1.8 0.00005989033000000001 0.36 AML other m 2023-04-10T01:58:10.41
IV.VMGN.HHE. ML:1.8 0.000058623755 0.4 AML other m 2023-04-10T01:58:10.16
IV.SEI.HHE. ML:2.3 0.000187 0.5 AML other m 2023-04-10T01:58:10.21
IV.PARC.HHE. ML:1.8 0.00004818474 0.3792 AML other m 2023-04-10T01:58:10.36
IV.PARC.HHN. ML:1.8 0.000050140265 1.6192 AML other m 2023-04-10T01:58:10.83
GU.CARD.HHE. ML:1.9 0.00006567853 0.3008 AML other m 2023-04-10T01:58:11.81
IV.LMD.HHN. ML:2.0 0.0000786 1.72 AML other m 2023-04-10T01:58:11.04
IV.ATMI.HHN. ML:2.4 0.000257 0.52 AML other m 2023-04-10T01:58:12.30
IV.SEI.HHN. ML:2.6 0.00034899999999999997 0.34 AML other m 2023-04-10T01:58:13.08
IV.LMD.HHE. ML:1.9 0.00005835 0.3 AML other m 2023-04-10T01:58:13.39
IV.BDI.HHE. ML:2.0 0.00008985 0.42 AML other m 2023-04-10T01:58:14.29
IV.ATMI.HHE. ML:2.3 0.00019250000000000002 1.58 AML other m 2023-04-10T01:58:14.86
GU.EQUI.HHN. ML:1.6 0.000026609095 1.72 AML other m 2023-04-10T01:58:16.02
IV.MURB.HNN. ML:2.4 0.0001990544 0.3296 AML other m 2023-04-10T01:58:16.77
IV.MURB.HHN. ML:2.3 0.000144145675 0.2592 AML other m 2023-04-10T01:58:17.86
GU.EQUI.HHE. ML:1.7 0.00003235000000000001 0.7 AML other m 2023-04-10T01:58:19.37
IV.MURB.HNE. ML:2.4 0.0001679856 0.36 AML other m 2023-04-10T01:58:20.23
IV.MURB.HHE. ML:2.4 0.0001703394 0.3808 AML other m 2023-04-10T01:58:21.58
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
Waveforms Seismic signals in miniseed + resp format Download