Earthquake with magnitude of ML 1.4 on date 15-10-2019 and time 13:26:01 (Italy) in region 4 km N Montieri (GR)

A magnitude ML 1.4 earthquake occured in region: 4 km N Montieri (GR), on

  • 15-10-2019 11:26:01 (UTC)
  • 15-10-2019 13:26:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.16, 11.03 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.

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 4 1204 1204
Chiusdino SI 5 1903 3107
Castelnuovo di Val di Cecina PI 11 2231 5338
Radicondoli SI 11 914 6252
Monticiano SI 13 1571 7823
Monterotondo Marittimo GR 14 1371 9194
Massa Marittima GR 17 8375 17569
Pomarance PI 20 5897 23466
Casole d'Elsa SI 20 3897 27363

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km SW of Siena (53903 inhabitants)
45 Km N of Grosseto (82087 inhabitants)
68 Km S of Scandicci (50609 inhabitants)
70 Km S of Firenze (382808 inhabitants)
72 Km SE of Livorno (159219 inhabitants)
77 Km W of Arezzo (99543 inhabitants)
80 Km SE of Pisa (89158 inhabitants)
80 Km S of Prato (191150 inhabitants)
86 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
Rev 1000 ML 1.4 2019-10-15
11:26:01
43.16 11.03 11 2020-02-28
16:41:57
Bollettino Sismico Italiano INGV 73390811
Rev 100 ML 1.4 2019-10-15
11:26:01
43.17 11.02 10 2019-10-15
11:42:26
Sala Sismica INGV-Roma 73267001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-15 11:26:01 ± 0.09
Latitude 43.16 ± 0.01
Longitude 11.03 ± 0.01
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73390811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 628
Semi-minor axis of confidence ellipse (meter) 485
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 320
Circular confidence region, given by single value of horizontal uncertainty (meter) 630
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.10252
Epicentral distance of station farthest from the epicenter (degree) 0.94878
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
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 73267001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-15 11:42:26

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 73390811
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-22 13:08:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.CARD.HHZ. 2019-10-15T11:26:19.94 0.6 undecidable manual P 336 0.9488 50 0.25 42
IV.ARCI.HNZ. 2019-10-15T11:26:17.62 0.3 undecidable manual S 133 0.4515 50 -0.32 69
IV.CASP.HHE. 2019-10-15T11:26:16.04 0.3 undecidable manual S 198 0.3903 50 -0.08 74
IV.CSNT.HHE. 2019-10-15T11:26:15.19 0.3 undecidable manual S 32 0.3642 50 -0.17 73
IV.MAGO.CHZ. 2019-10-15T11:26:12.69 0.3 undecidable manual S 292 0.2905 50 -0.47 69
IV.ARCI.HNZ. 2019-10-15T11:26:11.54 0.1 undecidable manual P 133 0.4515 50 0.35 92
IV.CASP.HHE. 2019-10-15T11:26:10.33 0.6 undecidable manual P 198 0.3903 50 0.19 48
IV.OSSC.HHZ. 2019-10-15T11:26:10.32 0.6 undecidable manual P 24 0.3939 50 0.11 49
IV.CSNT.HHE. 2019-10-15T11:26:09.91 0.1 undecidable manual P 32 0.3642 50 0.21 96
IV.MAGO.CHZ. 2019-10-15T11:26:08.68 0.3 undecidable manual P 292 0.2905 50 0.25 73
IV.FROS.CHZ. 2019-10-15T11:26:07.04 0.3 undecidable manual S 63 0.1052 132 -0.38 73
IV.TRIF.CHZ. 2019-10-15T11:26:07.08 0.3 undecidable manual S 242 0.1025 133 -0.25 75
IV.RIBO.EHZ.01 2019-10-15T11:26:06.92 0.6 undecidable manual P 176 0.214 50 -0.21 50
IV.TRIF.CHZ. 2019-10-15T11:26:05.33 0.1 undecidable manual P 242 0.1025 133 0.27 100
IV.FROS.CHZ. 2019-10-15T11:26:05.26 0.3 undecidable manual P 63 0.1052 132 0.15 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TRIF.CHN. ML:1.6 0.0004045 0.52 AML other m 2019-10-15T11:26:06.78
IV.FROS.CHE. ML:1.3 0.0002215 0.72 AML other m 2019-10-15T11:26:07.18
IV.FROS.CHN. ML:1.6 0.0004385 0.36 AML other m 2019-10-15T11:26:07.23
IV.TRIF.CHE. ML:1.6 0.00042 0.26 AML other m 2019-10-15T11:26:07.44
IV.MAGO.CHN. ML:1.4 9.9598165E-5 0.1344 AML other m 2019-10-15T11:26:12.84
IV.MAGO.CHE. ML:1.2 6.3855665E-5 0.1408 AML other m 2019-10-15T11:26:13.15
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download