Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 18-10-2019 and time 22:06:25 (Italy) in region 4 km SE Calice al Cornoviglio (SP)

A magnitude ML 1.0 earthquake occured in region: 4 km SE Calice al Cornoviglio (SP), on

  • 18-10-2019 20:06:25 (UTC)
  • 18-10-2019 22:06:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2110, 9.8570 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Bolano SP 4 7813 7813
Calice al Cornoviglio SP 4 1138 8951
Follo SP 5 6337 15288
Podenzana MS 7 2180 17468
Santo Stefano di Magra SP 7 9360 26828
Beverino SP 7 2429 29257
Vezzano Ligure SP 8 7356 36613
Tresana MS 8 2044 38657
Aulla MS 9 11263 49920
Rocchetta di Vara SP 9 703 50623
Riccò del Golfo di Spezia SP 10 3698 54321
Borghetto di Vara SP 11 938 55259
Brugnato SP 11 1270 56529
Pignone SP 11 565 57094
Arcola SP 11 10607 67701
Zignago SP 12 532 68233
La Spezia SP 12 93959 162192
Villafranca in Lunigiana MS 12 4770 166962
Mulazzo MS 13 2424 169386
Sarzana SP 14 21976 191362
Filattiera MS 15 2309 193671
Riomaggiore SP 16 1576 195247
Fosdinovo MS 16 4883 200130
Lerici SP 16 10228 210358
Licciana Nardi MS 16 4949 215307
Bagnone MS 16 1887 217194
Vernazza SP 16 848 218042
Carrodano SP 16 503 218545
Sesta Godano SP 17 1377 219922
Portovenere SP 17 3630 223552
Monterosso al Mare SP 18 1464 225016
Zeri MS 18 1094 226110
Castelnuovo Magra SP 18 8415 234525
Ameglia SP 18 4365 238890
Pontremoli MS 19 7357 246247
Levanto SP 20 5499 251746

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km N of La Spezia (93959 inhabitants)
24 Km NW of Carrara (63133 inhabitants)
30 Km NW of Massa (69479 inhabitants)
50 Km NW of Viareggio (62467 inhabitants)
66 Km NW of Lucca (89046 inhabitants)
70 Km NW of Pisa (89158 inhabitants)
76 Km SW of Parma (192836 inhabitants)
77 Km E of Genova (586655 inhabitants)
82 Km NW of Livorno (159219 inhabitants)
82 Km SW of Reggio nell'Emilia (171345 inhabitants)
90 Km W of Pistoia (90315 inhabitants)
95 Km S of Piacenza (102191 inhabitants)
98 Km W of Modena (184973 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 1.0 2019-10-18
20:06:25		 44.2113 9.857 10 2020-02-28
16:42:13		 Bollettino Sismico Italiano INGV 74580391
Reviewed
Rev100 		ML 1.0 2019-10-18
20:06:26		 44.2097 9.86 10 2019-10-18
20:13:58		 Sala Sismica INGV-Roma 73330661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-18 20:06:25 ± 0.15
Latitude 44.2113 ± 0.0090
Longitude 9.8570 ± 0.0088
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 74580391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 898
Semi-minor axis of confidence ellipse (meter) 680
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 182
Circular confidence region, given by single value of horizontal uncertainty (meter) 900.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.16098
Epicentral distance of station farthest from the epicenter (degree) 0.68528
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 74580391
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-12 14:04:50

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 73330661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-18 20:13:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PII.HHZ. 2019-10-18T20:06:49.76 0.6 undecidable manual S 135 76.0683 50 0.76 37
GU.POPM.HHZ. 2019-10-18T20:06:48.15 0.6 undecidable manual S 104 73.9704 50 -0.29 44
GU.GORR.HHE. 2019-10-18T20:06:45.03 0.6 undecidable manual S 315 62.6928 50 -0.39 44
GU.CARD.HHZ. 2019-10-18T20:06:42.16 0.6 undecidable manual S 112 53.9016 50 -0.91 37
MN.VLC.HHZ. 2019-10-18T20:06:39.23 0.3 undecidable manual S 98 42.5241 50 -0.81 59
IV.PII.HHZ. 2019-10-18T20:06:39.53 0.3 undecidable manual P 135 76.0683 50 0.27 65
GU.POPM.HHZ. 2019-10-18T20:06:39.72 0.3 undecidable manual P 104 73.9704 50 0.78 56
GU.GRAM.HHZ. 2019-10-18T20:06:38.23 0.6 undecidable manual S 28 35.2425 50 0.14 48
GU.GORR.HHE. 2019-10-18T20:06:37.29 0.3 undecidable manual P 315 62.6928 50 0.09 70
GU.CARD.HHZ. 2019-10-18T20:06:36.51 0.3 undecidable manual P 112 53.9016 50 0.67 61
IV.MSSA.HHZ. 2019-10-18T20:06:35.92 0.3 undecidable manual S 293 29.3484 50 -0.61 65
GU.FIVI.HNZ. 2019-10-18T20:06:34.12 0.3 undecidable manual S 82 21.7671 114 -0.12 75
GU.EQUI.HHZ. 2019-10-18T20:06:34.24 0.3 undecidable manual S 102 24.0537 112 -0.75 62
MN.VLC.HHZ. 2019-10-18T20:06:34.15 0.3 undecidable manual P 98 42.5241 50 0.06 73
GU.GRAM.HHZ. 2019-10-18T20:06:33.30 0.1 positive manual P 28 35.2425 50 0.34 93
IV.PLMA.HHZ. 2019-10-18T20:06:32.74 0.3 undecidable manual S 181 17.871 119 -0.31 72
IV.MSSA.HHZ. 2019-10-18T20:06:32.04 0.1 undecidable manual P 293 29.3484 50 -0.02 100
GU.EQUI.HHZ. 2019-10-18T20:06:31.27 0.3 undecidable manual P 102 24.0537 112 0.1 75
GU.FIVI.HNZ. 2019-10-18T20:06:31.03 0.3 undecidable manual P 82 21.7671 114 0.29 72
IV.PLMA.HHZ. 2019-10-18T20:06:30.25 0.1 undecidable manual P 181 17.871 119 0.19 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PLMA.HHE. ML:1.0 0.00008408713500000001 0.1408 AML other m 2019-10-18T20:06:32.80
IV.PLMA.HHN. ML:0.9 0.000065789525 1.936 AML other m 2019-10-18T20:06:33.03
MN.VLC.HNN. ML:1.2 0.000053318595 1.2448 AML other m 2019-10-18T20:06:37.14
GU.GRAM.HHN. ML:0.9 0.000036966285000000004 1.8336 AML other m 2019-10-18T20:06:39.99
GU.GRAM.HHE. ML:0.8 0.000023021725 0.1792 AML other m 2019-10-18T20:06:40.20
MN.VLC.HHE. ML:0.5 0.000009951343 0.1152 AML other m 2019-10-18T20:06:40.18
MN.VLC.HNE. ML:1.2 0.00005323612 1.552 AML other m 2019-10-18T20:06:44.09
IV.MSSA.HHN. ML:0.8 0.000030145510000000002 1.2416 AML other m 2019-10-18T20:06:44.95
GU.CARD.HHE. ML:1.1 0.000031027685 0.1152 AML other m 2019-10-18T20:06:45.84
IV.MSSA.HHE. ML:0.8 0.00003567678 0.8224 AML other m 2019-10-18T20:06:46.13
GU.CARD.HHN. ML:1.1 0.000027694185000000002 0.128 AML other m 2019-10-18T20:06:46.24
MN.VLC.HHN. ML:0.7 0.000014447234 1.3728 AML other m 2019-10-18T20:06:47.05
IV.PII.HHN. ML:1.3 0.000031805173499999996 0.2944 AML other m 2019-10-18T20:06:50.66
IV.PII.HHE. ML:1.3 0.000030068625 0.2688 AML other m 2019-10-18T20:06:50.82
GU.POPM.HHN. ML:1.2 0.00002461601 0.1792 AML other m 2019-10-18T20:06:50.91
GU.POPM.HHE. ML:1.1 0.000018221055 0.1536 AML other m 2019-10-18T20:06:51.21
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