Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 13-05-2019 and time 22:59:25 (Italy) in region 8 km SE Castellina in Chianti (SI)

A magnitude ML 1.9 earthquake occured in region: 8 km SE Castellina in Chianti (SI), on

  • 13-05-2019 20:59:25 (UTC)
  • 13-05-2019 22:59:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4100, 11.3300 at 4 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
Castellina in Chianti SI 8 2859 2859
Monteriggioni SI 9 9810 12669
Radda in Chianti SI 9 1613 14282
Siena SI 10 53903 68185
Gaiole in Chianti SI 11 2758 70943
Castelnuovo Berardenga SI 16 9097 80040
Poggibonsi SI 16 29196 109236
Sovicille SI 17 10116 119352
Colle di Val d'Elsa SI 17 21620 140972
Cavriglia AR 18 9614 150586
Greve in Chianti FI 19 13862 164448
Barberino Val d'Elsa FI 20 4386 168834

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km N of Siena (53903 inhabitants)
41 Km S of Firenze (382808 inhabitants)
41 Km SE of Scandicci (50609 inhabitants)
45 Km W of Arezzo (99543 inhabitants)
56 Km SE of Prato (191150 inhabitants)
67 Km SE of Pistoia (90315 inhabitants)
74 Km N of Grosseto (82087 inhabitants)
82 Km E of Pisa (89158 inhabitants)
82 Km SE of Lucca (89046 inhabitants)
84 Km E of Livorno (159219 inhabitants)
92 Km W of Perugia (166134 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 1.9 2019-05-13
20:59:25		 43.4098 11.3303 5 2019-11-13
14:30:51		 Bollettino Sismico Italiano INGV 69377521
Reviewed
Rev100 		ML 2.0 2019-05-13
20:59:25		 43.4192 11.3108 8 2019-05-13
21:07:42		 Sala Sismica INGV-Roma 68525451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-05-13 20:59:25 ± 0.21
Latitude 43.4098 ± 0.0099
Longitude 11.3303 ± 0.0173
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 69377521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1181
Semi-minor axis of confidence ellipse (meter) 1154
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 272
Circular confidence region, given by single value of horizontal uncertainty (meter) 1180.0
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 28
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.06925
Epicentral distance of station farthest from the epicenter (degree) 1.13674
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 69377521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-08-09 08:39:41

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 68525451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-05-13 21:07:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SEI.HHZ. 2019-05-13T20:59:48.16 0.6 undecidable manual S 2 71.4729 50 -0.19 43
GU.EQUI.HHN. 2019-05-13T20:59:47.42 0.3 undecidable manual P 312 126.1737 50 0.37 56
GU.GSCL.HHN. 2019-05-13T20:59:47.17 0.6 undecidable manual P 331 119.991 50 1.07 29
IV.BDI.HNZ. 2019-05-13T20:59:42.63 0.6 undecidable manual P 321 93.3399 50 0.65 37
IV.CAFI.HHZ. 2019-05-13T20:59:42.40 0.6 undecidable manual S 100 52.1034 50 -0.75 38
IV.ATTE.HHN. 2019-05-13T20:59:41.65 0.6 undecidable manual P 106 85.8474 50 0.81 35
GU.POPM.HHZ. 2019-05-13T20:59:41.39 0.6 undecidable manual P 327 84.1491 50 0.83 35
IV.RUFI.EHZ. 2019-05-13T20:59:41.22 0.6 undecidable manual S 17 49.617 50 -1.28 30
GU.MAIM.HHZ. 2019-05-13T20:59:41.10 0.6 undecidable manual P 310 87.5457 50 0.01 43
IV.BADI.EHE. 2019-05-13T20:59:40.04 0.6 undecidable manual P 81 74.4699 50 0.97 33
IV.MGAB.HHZ. 2019-05-13T20:59:40.61 0.6 undecidable manual P 131 83.9493 50 0.07 43
IV.CASP.HHE. 2019-05-13T20:59:39.74 0.6 undecidable manual P 209 78.366 50 0.07 44
IV.MOCL.EHZ. 2019-05-13T20:59:39.85 0.3 undecidable manual P 350 67.0773 50 1.91 28
IV.ATVA.EHE. 2019-05-13T20:59:39.96 0.6 undecidable manual P 100 78.366 50 0.28 42
IV.PII.HHZ. 2019-05-13T20:59:38.00 0.6 undecidable manual P 298 73.371 50 -0.91 34
IV.SFI.HNN. 2019-05-13T20:59:38.85 0.6 undecidable manual P 37 68.7756 50 0.65 38
IV.SEI.HHZ. 2019-05-13T20:59:38.25 0.3 undecidable manual P 2 71.4729 50 -0.37 62
TV.SF11.HHZ. 2019-05-13T20:59:37.30 0.6 undecidable manual P 155 66.378 50 -0.53 40
TV.SF01.EHN. 2019-05-13T20:59:37.77 0.6 undecidable manual P 164 68.9754 50 -0.46 41
IV.RIBO.EHZ. 2019-05-13T20:59:36.08 0.3 undecidable manual P 204 55.9995 50 -0.16 67
IV.ASQU.HHE. 2019-05-13T20:59:36.92 0.6 undecidable manual P 41 56.5989 50 0.6 40
IV.CAFI.HHZ. 2019-05-13T20:59:35.34 0.6 undecidable manual P 100 52.1034 50 -0.28 44
IV.RUFI.EHZ. 2019-05-13T20:59:34.68 0.3 undecidable manual P 17 49.617 50 -0.57 62
IV.CRMI.HNN. 2019-05-13T20:59:34.48 0.6 undecidable manual P 327 51.2154 50 -1.02 34
IV.OSSC.HHZ. 2019-05-13T20:59:30.34 0.6 undecidable manual S 332 14.3745 107 -0.2 48
IV.OSSC.HHZ. 2019-05-13T20:59:28.28 0.1 negative manual P 332 14.3745 107 -0.06 98
IV.CSNT.HHZ. 2019-05-13T20:59:28.23 0.3 undecidable manual S 335 7.6812 120 -0.21 72
IV.CSNT.HHZ. 2019-05-13T20:59:27.16 0.1 undecidable manual P 335 7.6812 120 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.OSSC.HNE. ML:2.3 0.0023604765 0.192 AML other m 2019-05-13T20:59:30.56
IV.OSSC.HHN. ML:2.3 0.002391895 0.192 AML other m 2019-05-13T20:59:30.56
IV.OSSC.HHE. ML:2.3 0.0023665909999999995 0.256 AML other m 2019-05-13T20:59:30.85
IV.RUFI.EHE. ML:1.6 0.0001209596 0.2432 AML other m 2019-05-13T20:59:42.65
IV.RUFI.EHN. ML:1.7 0.00012577355 0.2432 AML other m 2019-05-13T20:59:42.96
IV.CAFI.HHE. ML:1.8 0.00016478950000000002 1.68 AML other m 2019-05-13T20:59:42.91
IV.CAFI.HNE. ML:1.8 0.0001576538 0.32 AML other m 2019-05-13T20:59:42.91
IV.CAFI.HNN. ML:1.8 0.000154137 0.5888 AML other m 2019-05-13T20:59:44.49
IV.CAFI.HHN. ML:1.7 0.0001273922 0.5888 AML other m 2019-05-13T20:59:44.49
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