Earthquake with magnitude of ML 1.5 on date 14-02-2021 and time 18:48:44 (Italy) in region 6 km NW Greve in Chianti (FI)

A magnitude ML 1.5 earthquake occured in region: 6 km NW Greve in Chianti (FI), on

  • 14-02-2021 17:48:44 (UTC)
  • 14-02-2021 18:48:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.616, 11.263 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
Greve in Chianti FI 6 13862 13862
San Casciano in Val di Pesa FI 8 17062 30924
Impruneta FI 8 14615 45539
Tavarnelle Val di Pesa FI 9 7800 53339
Barberino Val d'Elsa FI 11 4386 57725
Montespertoli FI 15 13537 71262
Bagno a Ripoli FI 16 25611 96873
Figline e Incisa Valdarno FI 16 23505 120378
Castellina in Chianti SI 16 2859 123237
Radda in Chianti SI 17 1613 124850
Scandicci FI 17 50609 175459
Firenze FI 17 382808 558267
Poggibonsi SI 19 29196 587463
Certaldo FI 19 16121 603584
Rignano sull'Arno FI 20 8651 612235

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km SE of Scandicci (50609 inhabitants)
17 Km S of Firenze (382808 inhabitants)
32 Km SE of Prato (191150 inhabitants)
34 Km N of Siena (53903 inhabitants)
45 Km SE of Pistoia (90315 inhabitants)
53 Km W of Arezzo (99543 inhabitants)
66 Km E of Lucca (89046 inhabitants)
70 Km E of Pisa (89158 inhabitants)
77 Km E of Livorno (159219 inhabitants)
86 Km E of Viareggio (62467 inhabitants)
90 Km SW of Faenza (58541 inhabitants)
90 Km SW of Imola (69797 inhabitants)
92 Km SW of Forlì (117913 inhabitants)
96 Km N of Grosseto (82087 inhabitants)
98 Km SW of Cesena (96758 inhabitants)
98 Km S of Bologna (386663 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 1.5 2021-02-14
17:48:44
43.6158 11.2628 10 2021-07-12
16:55:01
Bollettino Sismico Italiano INGV 88149731
Reviewed
Rev100
ML 1.8 2021-02-14
17:48:44
43.6087 11.2623 10 2021-02-14
18:00:21
Sala Sismica INGV-Roma 87156221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-14 17:48:44 ± 0.07
Latitude 43.6158 ± 0.0036
Longitude 11.2628 ± 0.0062
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 88149731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 539
Semi-minor axis of confidence ellipse (meter) 295
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 117
Circular confidence region, given by single value of horizontal uncertainty (meter) 540
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.09353
Epicentral distance of station farthest from the epicenter (degree) 0.6565
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 88149731
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-15 14:10:13

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 87156221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-14 18:00:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MAGO.CHE. 2021-02-14T17:49:03.66 0.6 undecidable manual S 232 0.5567 50 0.27 44
IV.LMD.HHE. 2021-02-14T17:49:03.95 0.6 undecidable manual S 35 0.5612 50 0.41 42
IV.PII.HHZ. 2021-02-14T17:49:02.18 0.3 undecidable manual S 281 0.5441 50 -0.83 55
IV.SFI.HNN. 2021-02-14T17:49:02.22 0.6 undecidable manual S 55 0.5108 50 0.18 45
IV.SEI.HHZ. 2021-02-14T17:49:00.05 0.6 undecidable manual S 9 0.4434 50 0.01 47
IV.RONT.HHZ. 2021-02-14T17:48:59.02 0.6 undecidable manual S 18 0.3966 50 0.36 44
IV.ASQU.HHZ. 2021-02-14T17:48:58.80 0.3 undecidable manual S 64 0.4209 50 -0.57 62
IV.FROS.CHE. 2021-02-14T17:48:58.85 0.3 undecidable manual S 191 0.4137 50 -0.29 67
IV.MOCL.EHZ. 2021-02-14T17:48:58.30 0.3 undecidable manual S 351 0.393 50 -0.25 68
IV.RINC.HHZ. 2021-02-14T17:48:57.80 0.6 undecidable manual S 42 0.3669 50 0.02 48
IV.BDI.HNZ. 2021-02-14T17:48:57.24 1.0 undecidable manual P 313 0.6565 50 0.24 22
IV.MPPT.EHZ. 2021-02-14T17:48:57.60 0.6 undecidable manual S 340 0.3633 50 -0.06 47
IV.LMD.HHE. 2021-02-14T17:48:55.74 0.1 undecidable manual P 35 0.5612 50 0.36 86
IV.PII.HHZ. 2021-02-14T17:48:55.23 0.1 undecidable manual P 281 0.5441 50 0.16 90
IV.MAGO.CHE. 2021-02-14T17:48:55.48 0.3 undecidable manual P 232 0.5567 50 0.19 67
GU.POPM.HHZ. 2021-02-14T17:48:55.81 1.0 undecidable manual P 320 0.563 50 0.41 21
IV.SFI.HNN. 2021-02-14T17:48:54.68 0.1 undecidable manual P 55 0.5108 50 0.17 90
IV.RUFI.EHE. 2021-02-14T17:48:54.83 0.6 undecidable manual S 39 0.2842 50 -0.5 44
IV.SEI.HHZ. 2021-02-14T17:48:53.65 0.1 undecidable manual P 9 0.4434 50 0.29 89
IV.RONT.HHZ. 2021-02-14T17:48:53.08 0.1 undecidable manual P 18 0.3966 50 0.52 85
IV.FROS.CHE. 2021-02-14T17:48:53.07 0.1 undecidable manual P 191 0.4137 50 0.23 91
IV.MOCL.EHZ. 2021-02-14T17:48:52.73 0.6 undecidable manual P 351 0.393 50 0.23 45
IV.RINC.HHZ. 2021-02-14T17:48:52.07 0.3 undecidable manual P 42 0.3669 50 0.02 72
IV.ASQU.HHZ. 2021-02-14T17:48:52.53 0.1 undecidable manual P 64 0.4209 50 -0.44 86
IV.MPPT.EHZ. 2021-02-14T17:48:51.82 0.3 undecidable manual P 340 0.3633 50 -0.17 70
IV.FIR.HNE. 2021-02-14T17:48:51.06 0.3 undecidable manual S 358 0.1583 120 -0.22 72
IV.CSNT.HHZ. 2021-02-14T17:48:50.70 0.3 undecidable manual S 172 0.1439 122 -0.1 74
IV.RUFI.EHE. 2021-02-14T17:48:50.46 0.1 positive manual P 39 0.2842 50 -0.18 94
IV.OSSC.HNE. 2021-02-14T17:48:49.45 0.6 undecidable manual S 188 0.0935 134 0.2 49
IV.FIR.HNE. 2021-02-14T17:48:48.17 0.3 undecidable manual P 358 0.1583 120 -0.12 73
IV.CSNT.HHZ. 2021-02-14T17:48:48.03 0.1 negative manual P 172 0.1439 122 0.01 100
IV.OSSC.HNE. 2021-02-14T17:48:46.98 0.3 undecidable manual P 188 0.0935 134 -0.15 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASQU.HHE. ML:1.2 4.3674645E-5 0.3712 AML other m 2021-02-14T17:48:58.93
IV.RINC.HHN. ML:1.1 4.563796E-5 0.4096 AML other m 2021-02-14T17:48:59.09
IV.RINC.HHE. ML:1.1 4.151262E-5 0.2816 AML other m 2021-02-14T17:49:00.10
IV.RONT.HHE. ML:2.2 0.0004525 0.24 AML other m 2021-02-14T17:49:00.04
IV.RONT.HHN. ML:2 0.00028 0.16 AML other m 2021-02-14T17:49:00.91
IV.PII.HHE. ML:1.6 8.365E-5 0.3 AML other m 2021-02-14T17:49:02.31
IV.ASQU.HHN. ML:1.2 3.941795E-5 0.5248 AML other m 2021-02-14T17:49:02.58
IV.PII.HHN. ML:1.6 8.11E-5 0.36 AML other m 2021-02-14T17:49:03.75
IV.SEI.HHE. ML:1.6 0.000101587895 0.4608 AML other m 2021-02-14T17:49:04.13
IV.SEI.HHN. ML:1.7 0.000137950905 0.3968 AML other m 2021-02-14T17:49:04.47
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