Earthquake with magnitude of ML 2.0 on date 21-06-2021 and time 23:41:07 (UTC) in region 3 km E Santo Stefano di Magra (SP)

A magnitude ML 2.0 earthquake occured in region: 3 km E Santo Stefano di Magra (SP), on

  • 21-06-2021 23:41:07 (UTC)
  • 22-06-2021 01:41:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1590, 9.9480 at 8 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Santo Stefano di Magra SP 3 9360 9360
Sarzana SP 5 21976 31336
Bolano SP 5 7813 39149
Vezzano Ligure SP 5 7356 46505
Podenzana MS 5 2180 48685
Arcola SP 6 10607 59292
Aulla MS 6 11263 70555
Fosdinovo MS 6 4883 75438
Follo SP 7 6337 81775
Castelnuovo Magra SP 9 8415 90190
Tresana MS 9 2044 92234
Lerici SP 10 10228 102462
Ameglia SP 10 4365 106827
La Spezia SP 11 93959 200786
Ortonovo SP 11 8277 209063
Calice al Cornoviglio SP 13 1138 210201
Licciana Nardi MS 14 4949 215150
Portovenere SP 14 3630 218780
Riccò del Golfo di Spezia SP 15 3698 222478
Beverino SP 15 2429 224907
Villafranca in Lunigiana MS 15 4770 229677
Carrara MS 15 63133 292810
Fivizzano MS 17 7925 300735
Pignone SP 18 565 301300
Riomaggiore SP 18 1576 302876
Bagnone MS 18 1887 304763
Rocchetta di Vara SP 18 703 305466
Mulazzo MS 18 2424 307890
Casola in Lunigiana MS 19 988 308878
Filattiera MS 19 2309 311187
Borghetto di Vara SP 19 938 312125
Brugnato SP 20 1270 313395

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km NE of La Spezia (93959 inhabitants)
15 Km NW of Carrara (63133 inhabitants)
21 Km NW of Massa (69479 inhabitants)
41 Km NW of Viareggio (62467 inhabitants)
57 Km NW of Lucca (89046 inhabitants)
61 Km NW of Pisa (89158 inhabitants)
73 Km NW of Livorno (159219 inhabitants)
78 Km SW of Parma (192836 inhabitants)
81 Km SW of Reggio nell'Emilia (171345 inhabitants)
82 Km W of Pistoia (90315 inhabitants)
86 Km E of Genova (586655 inhabitants)
95 Km SW of Modena (184973 inhabitants)
97 Km W of Prato (191150 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 2.0 2021-06-21
23:41:07
44.1592 9.9478 8 2021-12-29
11:12:13
Bollettino Sismico Italiano INGV 93001871
Reviewed
Rev100
ML 2.0 2021-06-21
23:41:06
44.173 9.9415 9 2021-06-21
23:50:39
Sala Sismica INGV-Roma 91676821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-21 23:41:07 ± 0.14
Latitude 44.1592 ± 0.0081
Longitude 9.9478 ± 0.0088
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 93001871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 823
Semi-minor axis of confidence ellipse (meter) 452
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 190
Circular confidence region, given by single value of horizontal uncertainty (meter) 820.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 45
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.48
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.79595
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 50
Type of magnitude ML
Reference to an origin 93001871
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-09-16 14:24:52

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 50
Type of magnitude ML
Reference to an origin 91676821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-21 23:50:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTQR.HHZ. 2021-06-21T23:42:53.63 3.0 undecidable manual Sg 12.65 0
IV.PZUN.HHZ. 2021-06-21T23:42:30.31 3.0 undecidable manual Pn -0.51 0
IV.BSSO.HHZ. 2021-06-21T23:42:21.78 3.0 undecidable manual Pg 8.56 0
IV.TREM.HHZ. 2021-06-21T23:42:17.09 3.0 negative manual Pn 0.27 0
IV.SAP2.EHZ. 2021-06-21T23:42:01.87 3.0 undecidable manual Pg 10.15 0
ST.VARA.EHZ. 2021-06-21T23:41:40.73 0.3 undecidable manual P 22 199.3449 38 1.82 20
IV.MBAL.EHZ. 2021-06-21T23:41:38.70 0.3 undecidable manual P 22 185.0703 38 1.58 26
IV.MDI.HHZ. 2021-06-21T23:41:38.18 0.3 undecidable manual P 354 179.5869 38 1.73 24
IV.ZEN8.EHZ. 2021-06-21T23:41:37.14 0.3 undecidable manual P 20 175.1913 50 1.33 32
IV.CRE.HHZ. 2021-06-21T23:41:35.25 0.3 undecidable manual P 110 170.9955 50 0.09 52
IV.CASP.HHZ. 2021-06-21T23:41:34.27 0.6 undecidable manual P 154 168.8088 50 -0.55 32
IV.SFI.EHZ. 2021-06-21T23:41:33.55 0.6 undecidable manual P 100 154.0347 50 1 28
IV.CSNT.HHZ. 2021-06-21T23:41:29.44 0.3 undecidable manual P 125 131.6682 50 0.34 57
IV.RUFI.EHZ. 2021-06-21T23:41:29.79 0.3 undecidable manual P 105 129.5703 50 1.01 44
GU.CANO.HHZ. 2021-06-21T23:41:29.47 0.3 undecidable manual P 273 136.1637 50 -0.33 56
GU.GORR.HHZ. 2021-06-21T23:41:28.59 0.6 undecidable manual S 314 71.8725 50 -0.72 38
GU.POPM.HHZ. 2021-06-21T23:41:28.33 0.6 undecidable manual S 101 65.6898 50 0.67 39
IV.OSSC.HHZ. 2021-06-21T23:41:28.81 0.3 undecidable manual P 124 125.4744 50 0.66 52
IV.PII.HHZ. 2021-06-21T23:41:27.98 0.6 undecidable manual S 136 66.8775 50 -0.01 46
IV.SEI.HHZ. 2021-06-21T23:41:27.27 0.3 undecidable manual P 95 112.998 50 1.06 45
GU.PCP.HHZ. 2021-06-21T23:41:27.11 0.6 undecidable manual P 291 119.0919 50 -0.04 41
GU.GSCL.HHZ. 2021-06-21T23:41:25.05 0.6 undecidable manual S 67 55.1004 50 0.21 45
IV.MOCL.EHZ. 2021-06-21T23:41:24.64 0.6 undecidable manual P 99 99.7224 50 0.47 39
IV.BDI.HHZ. 2021-06-21T23:41:23.49 0.6 undecidable manual S 101 52.7028 50 -0.7 39
IV.CRMI.HHZ. 2021-06-21T23:41:23.57 0.3 undecidable manual P 116 91.7415 50 0.63 56
IV.MPPT.EHZ. 2021-06-21T23:41:23.53 0.6 undecidable manual P 103 93.7395 50 0.27 41
IV.ZCCA.HHZ. 2021-06-21T23:41:23.47 0.3 undecidable manual P 75 84.4488 50 1.65 34
GU.MAIM.HHZ. 2021-06-21T23:41:22.80 0.6 undecidable manual S 122 51.2154 50 -1.01 35
GU.RNCA.HHZ. 2021-06-21T23:41:22.27 0.3 undecidable manual P 294 86.3469 50 0.16 65
GU.CARD.HHZ. 2021-06-21T23:41:21.29 0.3 undecidable manual S 109 45.0216 50 -0.86 56
IV.BOB.HHE. 2021-06-21T23:41:20.74 0.6 undecidable manual P 330 78.2661 50 -0.13 44
GU.GRAM.HHZ. 2021-06-21T23:41:19.56 0.6 undecidable manual S 14 37.9287 50 -0.68 41
GU.GORR.HHZ. 2021-06-21T23:41:19.50 0.3 undecidable manual P 314 71.8725 50 -0.39 63
IV.PII.HHZ. 2021-06-21T23:41:18.88 0.1 negative manual P 136 66.8775 50 -0.23 88
IV.NEVI.HNN. 2021-06-21T23:41:18.90 0.6 undecidable manual P 32 55.4001 50 1.55 26
GU.POPM.HHZ. 2021-06-21T23:41:18.84 0.1 undecidable manual P 101 65.6898 50 -0.08 91
GU.SARM.EHZ. 2021-06-21T23:41:18.85 0.3 undecidable manual S 85 36.1416 50 -0.92 55
GU.GSCL.HHZ. 2021-06-21T23:41:17.44 0.1 undecidable manual P 67 55.1004 50 0.14 92
IV.BDI.HHZ. 2021-06-21T23:41:16.69 0.1 undecidable manual P 101 52.7028 50 -0.24 90
GU.MAIM.HHZ. 2021-06-21T23:41:16.51 0.1 undecidable manual P 122 51.2154 50 -0.19 91
GU.CARD.HHZ. 2021-06-21T23:41:15.41 0.3 undecidable manual P 109 45.0216 50 -0.34 67
GU.GRAM.HHZ. 2021-06-21T23:41:14.16 0.1 undecidable manual P 14 37.9287 50 -0.49 88
GU.SARM.EHZ. 2021-06-21T23:41:13.93 0.1 undecidable manual P 85 36.1416 50 -0.45 89
IV.MSSA.HHZ. 2021-06-21T23:41:13.92 0.1 undecidable manual P 297 38.4282 50 -0.8 78
GU.EQUI.HHZ. 2021-06-21T23:41:13.02 0.3 undecidable manual S 87 16.3725 116 -0.3 71
IV.PLMA.HHZ. 2021-06-21T23:41:12.64 0.3 undecidable manual S 212 14.2746 119 -0.04 75
GU.FIVI.HNZ. 2021-06-21T23:41:12.84 0.3 undecidable manual S 58 16.7721 116 -0.62 65
GU.EQUI.HHZ. 2021-06-21T23:41:10.60 0.1 negative manual P 87 16.3725 116 -0.05 100
GU.FIVI.HNZ. 2021-06-21T23:41:10.82 0.1 undecidable manual P 58 16.7721 116 0.09 99
IV.PLMA.HHZ. 2021-06-21T23:41:10.45 0.1 undecidable manual P 212 14.2746 119 0.17 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.EQUI.HHE. ML:1.9 0.000833 0.48 AML other m 2021-06-21T23:41:13.55
GU.EQUI.HHN. ML:1.5 0.00027100000000000003 0.08 AML other m 2021-06-21T23:41:13.55
GU.FIVI.HNE. ML:2.3 0.00198 0.18 AML other m 2021-06-21T23:41:13.72
GU.FIVI.HNN. ML:2.4 0.00249 0.18 AML other m 2021-06-21T23:41:13.98
GU.MAIM.HHE. ML:1.6 0.00010195 0.44 AML other m 2021-06-21T23:41:17.22
GU.GRAM.HHE. ML:2.3 0.0008205 0.38 AML other m 2021-06-21T23:41:19.89
IV.MSSA.HHE. ML:2.6 0.0013 0.32 AML other m 2021-06-21T23:41:20.40
GU.CARD.HHE. ML:2.3 0.0005985000000000001 1.52 AML other m 2021-06-21T23:41:21.06
GU.GRAM.HHN. ML:2.3 0.0008355 0.24 AML other m 2021-06-21T23:41:22.01
IV.MSSA.HHN. ML:2.3 0.0007655000000000001 0.1 AML other m 2021-06-21T23:41:23.22
GU.MAIM.HHN. ML:1.8 0.000157 0.48 AML other m 2021-06-21T23:41:23.64
GU.CARD.HHN. ML:2.2 0.0004715 0.84 AML other m 2021-06-21T23:41:24.58
IV.MPPT.EHE. ML:1.8 0.0000679 1.3 AML other m 2021-06-21T23:41:25.02
IV.BDI.HNE. ML:2.0 0.00022099999999999998 0.82 AML other m 2021-06-21T23:41:26.75
IV.BDI.HHE. ML:1.9 0.00020150000000000002 0.14 AML other m 2021-06-21T23:41:26.68
GU.GSCL.HHE. ML:1.9 0.00018449999999999999 0.88 AML other m 2021-06-21T23:41:28.26
IV.BDI.HHN. ML:1.9 0.00020150000000000002 1.2 AML other m 2021-06-21T23:41:28.79
IV.PII.HHN. ML:2.2 0.00030000000000000003 1.82 AML other m 2021-06-21T23:41:30.06
IV.PII.HHE. ML:2.4 0.00041999999999999996 0.36 AML other m 2021-06-21T23:41:31.29
GU.POPM.HHE. ML:2.2 0.0002645 0.76 AML other m 2021-06-21T23:41:31.43
GU.GORR.HHN. ML:2.1 0.00019350000000000001 1.02 AML other m 2021-06-21T23:41:31.79
IV.BDI.HNN. ML:1.9 0.0001945 0.4 AML other m 2021-06-21T23:41:32.24
GU.GSCL.HHN. ML:1.9 0.0001955 0.98 AML other m 2021-06-21T23:41:32.80
GU.POPM.HHN. ML:2.2 0.000268 0.56 AML other m 2021-06-21T23:41:32.61
GU.GORR.HHE. ML:2.0 0.00017749999999999998 1.66 AML other m 2021-06-21T23:41:33.12
GU.RNCA.HHN. ML:2.3 0.00022849999999999997 0.52 AML other m 2021-06-21T23:41:35.63
GU.RNCA.HHE. ML:2.3 0.000257 0.44 AML other m 2021-06-21T23:41:35.66
IV.CRMI.HHN. ML:2.0 0.00009779999999999999 1.18 AML other m 2021-06-21T23:41:37.66
IV.CRMI.HHE. ML:1.6 0.000045799999999999995 1.08 AML other m 2021-06-21T23:41:37.34
IV.MPPT.EHN. ML:1.9 0.0000823 0.6 AML other m 2021-06-21T23:41:38.62
IV.MOCL.EHN. ML:1.9 0.000087 0.62 AML other m 2021-06-21T23:41:40.64
IV.MOCL.EHE. ML:2.0 0.00008905 0.24 AML other m 2021-06-21T23:41:41.69
IV.SEI.HHE. ML:2.1 0.00010109999999999999 0.72 AML other m 2021-06-21T23:41:47.57
IV.OSSC.HHN. ML:1.9 0.00005965 0.26 AML other m 2021-06-21T23:41:48.70
GU.CANO.HHN. ML:2.4 0.000134 0.98 AML other m 2021-06-21T23:41:48.70
IV.SEI.HHN. ML:2.2 0.0001245 1.48 AML other m 2021-06-21T23:41:49.00
IV.CSNT.HHN. ML:1.8 0.000043450000000000006 1.36 AML other m 2021-06-21T23:41:49.82
GU.CANO.HHE. ML:2.4 0.00016149999999999997 0.42 AML other m 2021-06-21T23:41:51.01
IV.OSSC.HHE. ML:2.0 0.0000663 0.48 AML other m 2021-06-21T23:41:51.87
IV.CASP.HHN. ML:1.8 0.000023449999999999997 0.68 AML other m 2021-06-21T23:41:53.54
IV.CSNT.HHE. ML:1.7 0.00002995 0.42 AML other m 2021-06-21T23:41:56.74
IV.CRE.HHN. ML:1.9 0.00002885 0.2 AML other m 2021-06-21T23:41:59.24
IV.SFI.EHE. ML:1.7 0.00002375 1.28 AML other m 2021-06-21T23:41:59.75
IV.CASP.HHE. ML:1.7 0.00002005 0.86 AML other m 2021-06-21T23:42:01.78
IV.CRE.HHE. ML:1.9 0.00002765 0.68 AML other m 2021-06-21T23:42:02.22
IV.ZEN8.EHN. ML:1.8 0.0000256 0.3 AML other m 2021-06-21T23:42:03.99
IV.MDI.HHE. ML:2.2 0.0000547 0.44 AML other m 2021-06-21T23:42:05.81
IV.MDI.HHN. ML:2.1 0.0000457 1.16 AML other m 2021-06-21T23:42:07.21
IV.SFI.EHN. ML:1.8 0.000028499999999999998 0.42 AML other m 2021-06-21T23:42:09.53
IV.ZEN8.EHE. ML:1.9 0.000032149999999999995 1.18 AML other m 2021-06-21T23:42:31.72
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
Waveforms Seismic signals in miniseed + resp format Download