Earthquake with magnitude of ML 1.4 on date 12-04-2019 and time 23:44:18 (Italy) in region 2 km N Montieri (GR)

A magnitude ML 1.4 earthquake occured in region: 2 km N Montieri (GR), on

  • 12-04-2019 21:44:18 (UTC)
  • 12-04-2019 23:44:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1520, 11.0090 at 8 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
Montieri GR 2 1204 1204
Chiusdino SI 7 1903 3107
Castelnuovo di Val di Cecina PI 10 2231 5338
Monterotondo Marittimo GR 12 1371 6709
Radicondoli SI 13 914 7623
Monticiano SI 14 1571 9194
Massa Marittima GR 15 8375 17569
Pomarance PI 20 5897 23466

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km SW of Siena (53903 inhabitants)
44 Km N of Grosseto (82087 inhabitants)
69 Km S of Scandicci (50609 inhabitants)
72 Km S of Firenze (382808 inhabitants)
72 Km SE of Livorno (159219 inhabitants)
79 Km W of Arezzo (99543 inhabitants)
80 Km SE of Pisa (89158 inhabitants)
82 Km S of Prato (191150 inhabitants)
87 Km S of Pistoia (90315 inhabitants)
87 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 1.4 2019-04-12
21:44:18
43.1518 11.0092 8 2019-08-22
08:25:11
Bollettino Sismico Italiano INGV 71060591
Reviewed
Rev100
ML 1.4 2019-04-12
21:44:18
43.1512 11.0033 9 2019-04-12
21:49:32
Sala Sismica INGV-Roma 67517661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-12 21:44:18 ± 0.11
Latitude 43.1518 ± 0.0063
Longitude 11.0092 ± 0.0099
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 71060591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 694
Semi-minor axis of confidence ellipse (meter) 622
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 283
Circular confidence region, given by single value of horizontal uncertainty (meter) 690.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
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) 0.08633
Epicentral distance of station farthest from the epicenter (degree) 0.72845
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 71060591
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-07-31 14:03:24

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 67517661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-12 21:49:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MAON.HHZ. 2019-04-12T21:44:42.92 0.3 undecidable manual S 173 80.8635 50 -0.1 65
IV.MAON.HHZ. 2019-04-12T21:44:33.08 0.3 undecidable manual P 173 80.8635 50 0.51 60
IV.CELB.HHZ. 2019-04-12T21:44:33.14 0.1 undecidable manual P 236 78.8655 50 0.88 69
IV.OSSC.HHZ. 2019-04-12T21:44:33.14 0.3 undecidable manual S 25 45.4212 50 -0.42 65
IV.CSNT.HHZ. 2019-04-12T21:44:32.13 0.6 undecidable manual S 32 42.2244 50 -0.57 42
TV.SF01.EHZ. 2019-04-12T21:44:29.03 0.1 undecidable manual P 130 58.6968 50 -0.12 90
IV.MAGO.CHZ. 2019-04-12T21:44:28.71 0.3 undecidable manual S 295 31.4463 104 -0.83 57
IV.OSSC.HHZ. 2019-04-12T21:44:27.30 0.1 undecidable manual P 25 45.4212 50 0.19 91
IV.CSNT.HHZ. 2019-04-12T21:44:26.75 0.1 undecidable manual P 32 42.2244 50 0.14 93
IV.CASP.HHZ. 2019-04-12T21:44:26.21 0.1 undecidable manual P 196 41.7249 50 -0.32 89
IV.RIBO.EHZ.01 2019-04-12T21:44:25.92 0.3 undecidable manual S 172 22.755 109 -0.72 61
IV.MAGO.CHZ. 2019-04-12T21:44:24.92 0.1 undecidable manual P 295 31.4463 104 0.14 94
IV.FROS.CHZ. 2019-04-12T21:44:23.76 0.3 undecidable manual S 62 13.4754 121 0.02 75
IV.RIBO.EHZ.01 2019-04-12T21:44:23.05 0.1 undecidable manual P 172 22.755 109 -0.07 97
IV.TRIF.CHZ. 2019-04-12T21:44:22.57 0.1 undecidable manual S 244 9.5793 130 -0.04 100
IV.TRIF.CHZ. 2019-04-12T21:44:21.13 0.1 undecidable manual P 244 9.5793 130 0.35 94
IV.FROS.CHZ. 2019-04-12T21:44:21.76 0.1 undecidable manual P 62 13.4754 121 0.32 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TRIF.CHN. ML:2.1 0.00189 0.1 AML other m 2019-04-12T21:44:22.75
IV.TRIF.CHE. ML:1.9 0.00123 1.38 AML other m 2019-04-12T21:44:23.06
IV.FROS.CHE. ML:1.5 0.00036350000000000005 1.42 AML other m 2019-04-12T21:44:23.77
IV.FROS.CHN. ML:1.8 0.0006995 0.44 AML other m 2019-04-12T21:44:24.01
IV.MAGO.CHN. ML:1.2 0.0000745 0.16 AML other m 2019-04-12T21:44:28.84
IV.MAGO.CHE. ML:1.2 0.0000785 1.38 AML other m 2019-04-12T21:44:29.15
IV.CASP.HHE. ML:1.7 0.0001665 0.18 AML other m 2019-04-12T21:44:31.39
IV.CASP.HHN. ML:1.6 0.0001325 0.24 AML other m 2019-04-12T21:44:31.53
IV.CSNT.HHN. ML:1.2 0.0000505 0.26 AML other m 2019-04-12T21:44:32.17
IV.CSNT.HHE. ML:1.0 0.0000324 1.06 AML other m 2019-04-12T21:44:32.78
IV.OSSC.HHN. ML:0.9 0.00002615 0.5 AML other m 2019-04-12T21:44:33.46
IV.OSSC.HHE. ML:0.9 0.000025399999999999997 0.58 AML other m 2019-04-12T21:44:34.34
IV.CELB.HHE. ML:1.4 0.0000339 0.66 AML other m 2019-04-12T21:44:34.51
IV.CELB.HHN. ML:1.4 0.00004149999999999999 0.58 AML other m 2019-04-12T21:44:48.21
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