Earthquake with magnitude of ML 0.8 on date 02-09-2020 and time 03:07:33 (Italy) in region 2 km N Piazza al Serchio (LU)

A magnitude ML 0.8 earthquake occured in region: 2 km N Piazza al Serchio (LU), on

  • 02-09-2020 01:07:33 (UTC)
  • 02-09-2020 03:07:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2, 10.3 at 7 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
Piazza al Serchio LU 2 2367 2367
Sillano Giuncugnano LU 2 1085 3452
San Romano in Garfagnana LU 5 1410 4862
Camporgiano LU 6 2176 7038
Minucciano LU 8 2102 9140
Careggine LU 9 564 9704
Villa Collemandina LU 9 1334 11038
Casola in Lunigiana MS 10 988 12026
Vagli Sotto LU 10 939 12965
Castiglione di Garfagnana LU 11 1818 14783
Pieve Fosciana LU 12 2414 17197
Castelnuovo di Garfagnana LU 14 5950 23147
Fivizzano MS 14 7925 31072
Fosciandora LU 16 602 31674
Comano MS 17 714 32388
Molazzana LU 17 1043 33431
Fabbriche di Vergemoli LU 18 768 34199
Ventasso RE 19 4295 38494
Gallicano LU 19 3807 42301

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NE of Carrara (63133 inhabitants)
22 Km NE of Massa (69479 inhabitants)
37 Km N of Viareggio (62467 inhabitants)
39 Km E of La Spezia (93959 inhabitants)
43 Km NW of Lucca (89046 inhabitants)
55 Km N of Pisa (89158 inhabitants)
58 Km NW of Pistoia (90315 inhabitants)
61 Km SW of Reggio nell'Emilia (171345 inhabitants)
67 Km S of Parma (192836 inhabitants)
70 Km SW of Modena (184973 inhabitants)
72 Km N of Livorno (159219 inhabitants)
73 Km W of Prato (191150 inhabitants)
80 Km SW of Carpi (70699 inhabitants)
86 Km NW of Scandicci (50609 inhabitants)
89 Km W of Bologna (386663 inhabitants)
91 Km NW of Firenze (382808 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.8 2020-09-02
01:07:33
44.2 10.3 7 2020-09-02
01:13:54
Sala Sismica INGV-Roma 82545611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-02 01:07:33 ± 0.15
Latitude 44.20 ± 0.00
Longitude 10.30 ± 0.00
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82545611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 488
Semi-minor axis of confidence ellipse (meter) 143
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 17
Circular confidence region, given by single value of horizontal uncertainty (meter) 490
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
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) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.07644
Epicentral distance of station farthest from the epicenter (degree) 0.35343
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 82545611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-02 01:13:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.GRAM.HHZ. 2020-09-02T01:07:46.28 0.3 undecidable manual S 330 0.3327 100 -0.38 66
GU.GSCL.HHZ. 2020-09-02T01:07:43.71 0.3 undecidable manual S 54 0.2545 103 -0.02 73
GU.GRAM.HHZ. 2020-09-02T01:07:41.21 1.0 positive manual P 330 0.3327 100 0.06 24
GU.CARD.HHZ. 2020-09-02T01:07:41.96 0.3 undecidable manual S 143 0.2203 105 -0.49 66
IV.PLMA.HHZ. 2020-09-02T01:07:41.90 0.1 undecidable manual P 245 0.3534 100 0.3 90
GU.GSCL.HHZ. 2020-09-02T01:07:39.59 1.0 positive manual P 54 0.2545 103 0.13 24
GU.FIVI.HNE. 2020-09-02T01:07:39.13 0.1 undecidable manual S 287 0.1277 116 0.06 98
GU.EQUI.HHN. 2020-09-02T01:07:38.25 0.3 undecidable manual S 251 0.1097 119 -0.22 72
GU.CARD.HHZ. 2020-09-02T01:07:38.61 0.3 negative manual P 143 0.2203 105 -0.11 72
GU.SARM.EHZ. 2020-09-02T01:07:37.41 0.1 undecidable manual S 104 0.0764 129 0.02 100
MN.VLC.HHZ. 2020-09-02T01:07:37.43 0.3 undecidable manual S 124 0.0764 128 0.02 75
GU.FIVI.HNE. 2020-09-02T01:07:36.79 0.1 undecidable manual P 287 0.1277 116 0.02 99
GU.SARM.EHZ. 2020-09-02T01:07:36.00 0.1 undecidable manual P 104 0.0764 129 0.2 96
MN.VLC.HHZ. 2020-09-02T01:07:36.16 0.6 positive manual P 124 0.0764 128 0.35 47
GU.EQUI.HHN. 2020-09-02T01:07:36.46 0.1 undecidable manual P 251 0.1097 119 0.04 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.VLC.HHE. ML:0.5 5.3468115E-5 0.1 AML other m 2020-09-02T01:07:37.85
MN.VLC.HHN. ML:0.5 6.0563655E-5 0.12 AML other m 2020-09-02T01:07:37.77
MN.VLC.HNE. ML:0.7 8.332091E-5 0.86 AML other m 2020-09-02T01:07:35.63
MN.VLC.HNN. ML:0.6 7.178319E-5 0.22 AML other m 2020-09-02T01:07:37.77
GU.CARD.HHE. ML:1 6.50475E-5 0.14 AML other m 2020-09-02T01:07:42.71
GU.CARD.HHN. ML:1 6.615085E-5 0.08 AML other m 2020-09-02T01:07:42.78
GU.GSCL.HHE. ML:0.6 2.1773625E-5 0.28 AML other m 2020-09-02T01:07:43.93
GU.GSCL.HHN. ML:0.6 1.952789E-5 0.18 AML other m 2020-09-02T01:07:44.40
GU.GRAM.HHE. ML:1.3 7.5711865E-5 0.22 AML other m 2020-09-02T01:07:47.43
GU.GRAM.HHN. ML:1.3 8.7179275E-5 0.24 AML other m 2020-09-02T01:07:47.21
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