Earthquake with magnitude of ML 0.7 on date 29-08-2020 and time 22:46:53 (Italy) in region 9 km SE Firenzuola (FI)

A magnitude ML 0.7 earthquake occured in region: 9 km SE Firenzuola (FI), on

  • 29-08-2020 20:46:53 (UTC)
  • 29-08-2020 22:46:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.0630, 11.4600 at 11 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Palazzuolo sul Senio FI 9 1154 1154
Firenzuola FI 9 4726 5880
Marradi FI 12 3139 9019
Borgo San Lorenzo FI 13 18211 27230
Vicchio FI 14 8044 35274
Scarperia e San Piero FI 16 12217 47491
Castel del Rio BO 17 1246 48737
Barberino di Mugello FI 19 10836 59573
Dicomano FI 20 5515 65088
San Godenzo FI 20 1167 66255

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NE of Prato (191150 inhabitants)
36 Km NE of Firenze (382808 inhabitants)
38 Km SW of Imola (69797 inhabitants)
41 Km NE of Scandicci (50609 inhabitants)
42 Km SW of Faenza (58541 inhabitants)
46 Km E of Pistoia (90315 inhabitants)
49 Km S of Bologna (386663 inhabitants)
50 Km W of Forlì (117913 inhabitants)
63 Km W of Cesena (96758 inhabitants)
71 Km SW of Ravenna (159116 inhabitants)
74 Km NW of Arezzo (99543 inhabitants)
78 Km SE of Modena (184973 inhabitants)
80 Km E of Lucca (89046 inhabitants)
83 Km N of Siena (53903 inhabitants)
87 Km S of Ferrara (133155 inhabitants)
88 Km W of Rimini (147750 inhabitants)
92 Km SE of Carpi (70699 inhabitants)
93 Km E of Pisa (89158 inhabitants)
97 Km SE of Reggio nell'Emilia (171345 inhabitants)
99 Km E of Viareggio (62467 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
Reviewed
Rev100
ML 0.7 2020-08-29
20:46:53
44.0632 11.4605 11 2020-08-29
22:19:35
Sala Sismica INGV-Roma 82450151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-29 20:46:53 ± 0.49
Latitude 44.0632 ± 0.0081
Longitude 11.4605 ± 0.0238
Depth (km) 11 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82450151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1587
Semi-minor axis of confidence ellipse (meter) 1177
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 255
Circular confidence region, given by single value of horizontal uncertainty (meter) 1590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.20594
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 82450151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-29 22:19:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.REMY.HHZ. 2020-08-29T20:48:34.67 3.0 undecidable manual Sn 0.26 0
CR.ZAG.BHZ. 2020-08-29T20:48:33.40 3.0 undecidable manual Sn 1.34 0
IV.PANTE.HHZ. 2020-08-29T20:48:29.88 3.0 negative manual Pn -1.16 0
IV.SACR.HHZ. 2020-08-29T20:48:24.34 3.0 undecidable manual Sn 2.82 0
IV.LAV9.HHZ. 2020-08-29T20:47:56.06 3.0 undecidable manual Sn 0.07 0
GU.REMY.HHZ. 2020-08-29T20:47:46.78 3.0 undecidable manual Pn -0.95 0
IV.MAON.HHZ. 2020-08-29T20:47:37.28 3.0 undecidable manual S 1.7 0
OX.ACOM.HHZ. 2020-08-29T20:47:35.15 3.0 positive manual Pn -2.51 0
IV.MBAL.EHZ. 2020-08-29T20:47:25.50 3.0 negative manual Pg 2.5 0
IV.CIMA.HNZ. 2020-08-29T20:47:16.33 3.0 positive manual Pg -0.36 0
IV.FRON.EHZ. 2020-08-29T20:47:02.36 3.0 undecidable manual P -2.99 0
IV.RINC.HHZ. 2020-08-29T20:47:02.00 0.3 undecidable manual S 149 22.8549 50 0.24 71
IV.VISG.HHZ. 2020-08-29T20:46:59.18 0.3 undecidable manual S 352 14.0748 128 -0.18 74
IV.RINC.HHZ. 2020-08-29T20:46:58.31 0.3 undecidable manual P 149 22.8549 50 0.18 73
IV.RONT.HHZ. 2020-08-29T20:46:58.10 0.3 undecidable manual S 196 7.9809 144 0.23 71
IV.SEI.HHZ. 2020-08-29T20:46:57.86 0.3 undecidable manual S 263 8.1807 143 -0.05 75
IV.SEI.HHZ. 2020-08-29T20:46:56.08 0.1 undecidable manual P 263 8.1807 143 0.17 100
IV.VISG.HHZ. 2020-08-29T20:46:56.93 0.1 undecidable manual P 352 14.0748 128 0.19 98
IV.RONT.HHZ. 2020-08-29T20:46:55.30 0.1 undecidable manual P 196 7.9809 144 -0.59 90
IV.SFI.EHZ. 2020-08-29T20:46:48.15 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SEI.HHE. ML:0.6 0.00005295 0.74 AML other m 2020-08-29T20:46:58.02
IV.SEI.HHN. ML:0.9 0.00010020000000000001 0.58 AML other m 2020-08-29T20:46:58.15
IV.RONT.HHE. ML:0.6 0.000061411435 0.1408 AML other m 2020-08-29T20:46:58.42
IV.RONT.HHN. ML:0.6 0.00005890218 0.128 AML other m 2020-08-29T20:46:58.60
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