Earthquake (quarry blast) with magnitude of ML 0.7 on date 22-07-2018 and time 10:54:51 (Italy) in region 2 km E Pescaglia (LU)

A magnitude ML 0.7 (quarry blast) earthquake occured in region: 2 km E Pescaglia (LU), on

  • 22-07-2018 08:54:51 (UTC)
  • 22-07-2018 10:54:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.98, 10.43 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: quarry blast.

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
Pescaglia LU 2 3526 3526
Borgo a Mozzano LU 9 6994 10520
Fabbriche di Vergemoli LU 10 768 11288
Gallicano LU 10 3807 15095
Molazzana LU 11 1043 16138
Camaiore LU 11 32513 48651
Stazzema LU 11 3193 51844
Barga LU 12 10034 61878
Coreglia Antelminelli LU 12 5215 67093
Bagni di Lucca LU 13 6161 73254
Massarosa LU 14 22471 95725
Castelnuovo di Garfagnana LU 15 5950 101675
Lucca LU 16 89046 190721
Fosciandora LU 16 602 191323
Pietrasanta LU 17 24007 215330
Seravezza LU 17 13073 228403
Pieve Fosciana LU 17 2414 230817
Villa Basilica LU 18 1633 232450
Capannori LU 18 46252 278702
Careggine LU 18 564 279266
Viareggio LU 19 62467 341733
Castiglione di Garfagnana LU 19 1818 343551
Vagli Sotto LU 20 939 344490

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NW of Lucca (89046 inhabitants)
19 Km NE of Viareggio (62467 inhabitants)
24 Km E of Massa (69479 inhabitants)
29 Km N of Pisa (89158 inhabitants)
29 Km E of Carrara (63133 inhabitants)
39 Km W of Pistoia (90315 inhabitants)
48 Km N of Livorno (159219 inhabitants)
51 Km E of La Spezia (93959 inhabitants)
54 Km W of Prato (191150 inhabitants)
65 Km W of Scandicci (50609 inhabitants)
70 Km W of Firenze (382808 inhabitants)
82 Km S of Reggio nell'Emilia (171345 inhabitants)
84 Km SW of Modena (184973 inhabitants)
92 Km S of Parma (192836 inhabitants)
93 Km SW of Bologna (386663 inhabitants)
97 Km SW of Carpi (70699 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
Rev 1000 ML 0.7 2018-07-22
08:54:51
43.98 10.43 1 2019-04-24
14:51:12
Bollettino Sismico Italiano INGV 66649471
Rev 100 ML 0.9 2018-07-22
08:54:51
43.97 10.44 9 2018-07-22
09:00:26
Sala Sismica INGV-Roma 58963041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-07-22 08:54:51 ± 0.17
Latitude 43.98 ± 0.01
Longitude 10.43 ± 0.01
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type quarry blast
Origin ID 66649471

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1250
Semi-minor axis of confidence ellipse (meter) 800
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 230
Circular confidence region, given by single value of horizontal uncertainty (meter) 1250
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 167
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.06025
Epicentral distance of station farthest from the epicenter (degree) 0.27699
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 58963041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-07-22 09:00:26

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 66649471
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-17 23:35:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.EQUI.HHZ. 2018-07-22T08:54:57.81 0.1 undecidable manual P 313 0.277 91 -0.27 94
GU.SARM.EHZ. 2018-07-22T08:54:56.66 0.3 undecidable manual P 353 0.2086 91 0.09 74
MN.VLC.HHZ. 2018-07-22T08:54:56.25 0.1 undecidable manual P 349 0.1862 91 0.19 97
GU.POPM.HHZ. 2018-07-22T08:54:56.94 0.1 undecidable manual P 73 0.2419 91 -0.36 93
IV.BDI.HHZ. 2018-07-22T08:54:55.05 0.3 undecidable manual P 53 0.1448 92 -0.09 75
GU.MAIM.HHZ. 2018-07-22T08:54:53.74 0.1 undecidable manual P 146 0.0746 93 0.16 100
GU.CARD.HHZ. 2018-07-22T08:54:53.52 0.1 undecidable manual P 35 0.0603 94 0.25 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CARD.HHE. ML:0 0.00082153075 0.16 AML other m 2018-07-22T08:54:54.71
GU.CARD.HHN. ML:0 0.0007049672 1.8656 AML other m 2018-07-22T08:54:54.06
GU.MAIM.HHN. ML:0 0.00017904725 0.2176 AML other m 2018-07-22T08:54:55.13
GU.MAIM.HHE. ML:0 0.00029806955 0.3392 AML other m 2018-07-22T08:54:55.42
MN.VLC.HNN. ML:0.9 7.218585E-5 0.7808 AML other m 2018-07-22T08:54:59.26
MN.VLC.HHN. ML:0.6 3.121682E-5 0.224 AML other m 2018-07-22T08:54:59.86
MN.VLC.HHE. ML:0.4 1.819993E-5 0.2368 AML other m 2018-07-22T08:54:59.82
MN.VLC.HNE. ML:0.8 4.766573E-5 0.7552 AML other m 2018-07-22T08:55:00.83
GU.EQUI.HHN. ML:0.6 2.0488225E-5 0.2816 AML other m 2018-07-22T08:55:02.57
GU.EQUI.HHE. ML:0.8 3.7363455E-5 0.0416 AML other m 2018-07-22T08:55:02.95
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