Earthquake with magnitude of ML 1.4 on date 09-05-2020 and time 14:11:29 (Italy) in region 3 km W Monterotondo Marittimo (GR)

A magnitude ML 1.4 earthquake occured in region: 3 km W Monterotondo Marittimo (GR), on

  • 09-05-2020 12:11:29 (UTC)
  • 09-05-2020 14:11:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1480, 10.8180 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
Monteverdi Marittimo PI 9 758 2129
Castelnuovo di Val di Cecina PI 10 2231 4360
Massa Marittima GR 12 8375 12735
Suvereto LI 14 3072 15807
Sassetta LI 14 514 16321
Montieri GR 16 1204 17525
Castagneto Carducci LI 17 9010 26535
Pomarance PI 18 5897 32432
Campiglia Marittima LI 19 13218 45650

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 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)
74 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)
93 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 1.4 2020-05-09
12:11:29
43.1478 10.8182 7 2020-11-19
12:36:44
Bollettino Sismico Italiano INGV 79106201
Reviewed
Rev100
ML 1.6 2020-05-09
12:11:29
43.1427 10.8092 8 2020-05-09
12:17:22
Sala Sismica INGV-Roma 78981741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-09 12:11:29 ± 0.13
Latitude 43.1478 ± 0.0072
Longitude 10.8182 ± 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 79106201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 825
Semi-minor axis of confidence ellipse (meter) 482
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 50
Circular confidence region, given by single value of horizontal uncertainty (meter) 830.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.68978
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 79106201
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-08-06 13:20:56

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 78981741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-09 12:17:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MBFT.HHZ. 2020-05-09T12:13:04.68 3.0 undecidable manual Pg 13.01 0
IV.SPS2.HHZ. 2020-05-09T12:12:57.60 3.0 undecidable manual Pn 2.67 0
IV.RNI2.HHZ. 2020-05-09T12:12:54.56 3.0 undecidable manual Sn 2.1 0
IV.MILN.HNZ. 2020-05-09T12:12:42.20 3.0 undecidable manual Sn -3.94 0
IV.VCEL.EHZ. 2020-05-09T12:12:40.12 3.0 undecidable manual Sn 0.07 0
IV.CRTC.HHZ. 2020-05-09T12:12:27.25 3.0 undecidable manual Sg 4.68 0
IV.LRP.EHZ. 2020-05-09T12:12:15.39 3.0 undecidable manual Pn 3.48 0
IV.VVLD.HHZ. 2020-05-09T12:12:13.69 3.0 negative manual Pn 3.2 0
GU.GSCL.HHZ. 2020-05-09T12:11:53.96 3.0 undecidable manual P 0.11 0
IV.CSNT.HHZ. 2020-05-09T12:11:46.26 0.6 undecidable manual S 46 52.503 50 -0.86 37
TV.SF04.EHZ. 2020-05-09T12:11:44.21 0.3 undecidable manual P 117 76.5678 50 0.71 57
IV.CASP.HHZ. 2020-05-09T12:11:43.06 0.3 undecidable manual S 174 39.8268 50 -0.68 62
IV.CRMI.HNN. 2020-05-09T12:11:43.32 0.3 undecidable manual P 10 73.0713 50 0.37 64
IV.PII.HHZ. 2020-05-09T12:11:42.13 0.6 undecidable manual P 340 67.9764 50 -0.04 46
IV.CELB.HHZ. 2020-05-09T12:11:42.56 0.3 undecidable manual P 228 66.4779 50 0.62 60
IV.ARCI.HNZ. 2020-05-09T12:11:41.91 0.3 undecidable manual P 121 62.5929 50 0.57 62
IV.RIBO.EHN.01 2020-05-09T12:11:39.69 0.3 undecidable manual S 140 28.749 104 -0.34 70
IV.CSNT.HHZ. 2020-05-09T12:11:39.64 0.3 undecidable manual P 46 52.503 50 -0.14 70
IV.FROS.CHZ. 2020-05-09T12:11:39.78 0.3 undecidable manual S 76 28.1496 104 -0.05 74
IV.CASP.HHZ. 2020-05-09T12:11:37.45 0.3 undecidable manual P 174 39.8268 50 -0.38 68
IV.MAGO.CHZ. 2020-05-09T12:11:36.25 0.3 undecidable manual S 317 19.0698 110 -0.54 68
IV.FROS.CHZ. 2020-05-09T12:11:35.59 0.1 undecidable manual P 76 28.1496 104 0.01 100
IV.RIBO.EHN.01 2020-05-09T12:11:35.72 0.6 undecidable manual P 140 28.749 104 0.03 50
IV.TRIF.CHZ. 2020-05-09T12:11:33.25 0.6 undecidable manual S 118 7.7811 132 -0.13 51
IV.MAGO.CHZ. 2020-05-09T12:11:33.96 0.1 undecidable manual P 317 19.0698 110 0.15 99
IV.TRIF.CHZ. 2020-05-09T12:11:32.11 0.1 undecidable manual P 118 7.7811 132 0.26 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MAGO.CHE. ML:1.6 0.000303 0.34 AML other m 2020-05-09T12:11:36.62
IV.MAGO.CHN. ML:1.4 0.00022600000000000002 0.52 AML other m 2020-05-09T12:11:36.76
IV.FROS.CHN. ML:1.2 0.00009595 1.68 AML other m 2020-05-09T12:11:40.12
IV.FROS.CHE. ML:1.2 0.0000886 1 AML other m 2020-05-09T12:11:41.09
IV.CELB.HHN. ML:1.5 0.0000563 0.86 AML other m 2020-05-09T12:11:43.35
IV.CELB.HHE. ML:1.7 0.00008335 0.84 AML other m 2020-05-09T12:11:54.69
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