Earthquake with magnitude of ML 1.4 on date 14-08-2020 and time 06:14:51 (Italy) in region Costa Toscana settentrionale (Massa Carrara, Lucca, Pisa)

A magnitude ML 1.4 earthquake occured in region: Costa Toscana settentrionale (Massa Carrara, Lucca, Pisa), on

  • 14-08-2020 04:14:51 (UTC)
  • 14-08-2020 06:14:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.7230, 10.0240 at 11 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km SW of Viareggio (62467 inhabitants)
30 Km NW of Livorno (159219 inhabitants)
30 Km W of Pisa (89158 inhabitants)
36 Km S of Massa (69479 inhabitants)
40 Km S of Carrara (63133 inhabitants)
41 Km W of Lucca (89046 inhabitants)
46 Km SE of La Spezia (93959 inhabitants)
76 Km W of Pistoia (90315 inhabitants)
88 Km W of Prato (191150 inhabitants)
93 Km W of Scandicci (50609 inhabitants)
99 Km W of Firenze (382808 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 2020-08-14
04:14:51
43.7233 10.0237 11 2020-11-19
12:36:58
Bollettino Sismico Italiano INGV 82284151
Reviewed
Rev100
ML 1.6 2020-08-14
04:14:50
43.7273 10.0285 5 2020-08-14
04:35:40
Sala Sismica INGV-Roma 81957051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-14 04:14:51 ± 0.3
Latitude 43.7233 ± 0.0063
Longitude 10.0237 ± 0.0124
Depth (km) 11 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82284151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 840
Semi-minor axis of confidence ellipse (meter) 562
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 64
Circular confidence region, given by single value of horizontal uncertainty (meter) 840.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 148
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
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) 0.34804
Epicentral distance of station farthest from the epicenter (degree) 0.98566
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 81957051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-14 04:35:40

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 82284151
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-08-24 08:59:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MAGO.CHE. 2020-08-14T04:15:12.68 0.6 undecidable manual S 134 71.373 50 -0.01 48
IV.CELB.HHE. 2020-08-14T04:15:09.51 1.0 undecidable manual P 172 109.4127 50 0.08 22
GU.EQUI.HHZ. 2020-08-14T04:15:07.05 0.6 undecidable manual S 12 50.2164 50 0.02 50
GU.CARD.HHZ. 2020-08-14T04:15:07.38 0.6 undecidable manual S 47 49.7169 50 0.48 45
GU.MAIM.HHN. 2020-08-14T04:15:05.12 0.6 undecidable manual S 60 43.0236 50 0 51
IV.GSCL.HHZ. 2020-08-14T04:15:05.24 1.0 undecidable manual P 33 82.8504 50 -0.1 23
Z3.A317A.HHE. 2020-08-14T04:15:04.92 0.3 undecidable manual P 191 76.0683 50 0.62 62
IV.PII.HHZ. 2020-08-14T04:15:04.14 0.3 undecidable manual S 90 40.2264 50 -0.22 73
IV.PLMA.HHZ. 2020-08-14T04:15:03.84 0.6 undecidable manual S 339 38.628 50 -0.12 50
GU.SARM.EHZ. 2020-08-14T04:15:02.16 0.6 undecidable manual P 30 59.2962 50 0.45 45
IV.MAGO.CHE. 2020-08-14T04:15:02.79 0.6 undecidable manual P 134 71.373 50 -0.79 39
IV.BDI.HHE. 2020-08-14T04:15:01.83 0.6 undecidable manual P 50 59.1963 50 0.13 48
GU.FIVI.HNZ. 2020-08-14T04:15:01.33 0.6 undecidable manual P 8 57.7977 50 -0.15 48
MN.VLC.HHZ. 2020-08-14T04:15:01.66 0.3 undecidable manual P 31 56.3991 50 0.4 69
GU.EQUI.HHZ. 2020-08-14T04:15:00.19 0.3 undecidable manual P 12 50.2164 50 -0.11 74
GU.CARD.HHZ. 2020-08-14T04:15:00.26 0.1 undecidable manual P 47 49.7169 50 0.03 100
GU.MAIM.HHN. 2020-08-14T04:14:59.33 0.6 undecidable manual P 60 43.0236 50 0.13 50
IV.PII.HHZ. 2020-08-14T04:14:58.57 0.1 undecidable manual P 90 40.2264 50 -0.19 98
IV.PLMA.HHZ. 2020-08-14T04:14:58.16 0.1 undecidable manual P 339 38.628 50 -0.37 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PII.HHN. ML:1.4 0.00009179336499999999 0.2816 AML other m 2020-08-14T04:15:04.40
IV.PII.HHE. ML:1.4 0.000084187875 0.2624 AML other m 2020-08-14T04:15:04.48
IV.PLMA.HHE. ML:1.2 0.000054035685 0.2592 AML other m 2020-08-14T04:15:07.05
IV.PLMA.HHN. ML:1.1 0.000043126835 0.3392 AML other m 2020-08-14T04:15:07.75
GU.CARD.HHE. ML:1.5 0.00009030687500000001 0.2208 AML other m 2020-08-14T04:15:07.92
GU.CARD.HHN. ML:1.6 0.000093934955 0.16 AML other m 2020-08-14T04:15:07.95
GU.GSCL.HHN. ML:1.6 0.000053919659999999995 0.3424 AML other m 2020-08-14T04:15:21.94
GU.GSCL.HHE. ML:1.5 0.000043094670000000004 0.4608 AML other m 2020-08-14T04:15:23.61
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download