Earthquake with magnitude of ML 2.1 on date 10-04-2019 and time 12:08:55 (UTC) in region 1 km E Grotte di Castro (VT)

A magnitude ML 2.1 earthquake occured in region: 1 km E Grotte di Castro (VT), on

  • 10-04-2019 12:08:55 (UTC)
  • 10-04-2019 14:08:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6780, 11.8790 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Grotte di Castro VT 1 2683 2683
San Lorenzo Nuovo VT 3 2091 4774
Gradoli VT 4 1353 6127
Onano VT 6 995 7122
Latera VT 7 836 7958
Acquapendente VT 8 5506 13464
Castel Giorgio TR 9 2131 15595
Bolsena VT 10 3991 19586
Proceno VT 10 557 20143
Valentano VT 13 2868 23011
Castel Viscardo TR 13 2938 25949
Sorano GR 14 3428 29377
Capodimonte VT 14 1731 31108
Marta VT 16 3499 34607
Allerona TR 17 1794 36401
Pitigliano GR 18 3818 40219
Ischia di Castro VT 18 2326 42545
Piansano VT 18 2079 44624
Porano TR 18 1966 46590
Castell'Azzara GR 18 1476 48066
Bagnoregio VT 19 3650 51716
Farnese VT 19 1527 53243
Lubriano VT 19 909 54152
Orvieto TR 19 20630 74782
Montefiascone VT 20 13432 88214

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NW of Viterbo (67173 inhabitants)
63 Km E of Grosseto (82087 inhabitants)
63 Km SW of Perugia (166134 inhabitants)
64 Km W of Terni (111501 inhabitants)
65 Km N of Civitavecchia (52991 inhabitants)
74 Km W of Foligno (57155 inhabitants)
84 Km SE of Siena (53903 inhabitants)
88 Km S of Arezzo (99543 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 2.1 2019-04-10
12:08:55
42.6775 11.8793 10 2019-08-22
08:25:11
Bollettino Sismico Italiano INGV 71084821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-10 12:08:55 ± 0.11
Latitude 42.6775 ± 0.0054
Longitude 11.8793 ± 0.0098
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 71084821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 806
Semi-minor axis of confidence ellipse (meter) 502
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 249
Circular confidence region, given by single value of horizontal uncertainty (meter) 810.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.80220
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 15
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 71084821
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-08-01 14:48:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.AGST.EHZ. 2019-04-10T12:10:07.50 3.0 undecidable manual Pn 6.11 0
IV.CAGR.HHZ. 2019-04-10T12:10:00.48 3.0 undecidable manual Pn 6.07 0
IV.EUCT.HNZ. 2019-04-10T12:09:57.85 3.0 undecidable manual Pg 17.32 0
IV.MTGR.HHZ. 2019-04-10T12:09:54.21 3.0 positive manual Pn 5.44 0
GU.RORO.HHZ. 2019-04-10T12:09:54.76 3.0 negative manual Pg 13.79 0
IV.VULT.HHZ. 2019-04-10T12:09:49.96 3.0 undecidable manual Sn -1.82 0
IV.CRMI.HHZ. 2019-04-10T12:09:48.97 3.0 undecidable manual Sg 8.67 0
IV.IMOL.HNZ. 2019-04-10T12:09:47.15 3.0 undecidable manual Sg 3.61 0
IV.MNTV.HNZ. 2019-04-10T12:09:36.59 3.0 undecidable manual Pg 6.72 0
GU.RNCA.HHZ. 2019-04-10T12:09:34.60 3.0 undecidable manual Pn -1.04 0
IV.MTMR.EHZ. 2019-04-10T12:09:19.01 3.0 undecidable manual Pg 2.95 0
IV.TOLF.HHZ. 2019-04-10T12:09:17.15 0.6 undecidable manual S 172 68.7756 50 0.33 43
IV.BARO.EHZ. 2019-04-10T12:09:11.62 0.6 undecidable manual S 164 49.7169 50 -0.1 47
IV.CASP.HHZ. 2019-04-10T12:09:11.67 0.3 undecidable manual P 279 83.5497 50 1.46 39
IV.ATVO.HHN. 2019-04-10T12:09:11.36 0.6 undecidable manual P 28 89.0442 50 0.3 42
IV.MURB.HHZ. 2019-04-10T12:09:10.70 3.0 undecidable manual S -1.6 0
IV.CAFI.HNN. 2019-04-10T12:09:08.64 0.3 undecidable manual P 6 72.6717 50 0.12 67
IV.PTRJ.HNZ. 2019-04-10T12:09:08.94 3.0 undecidable manual Pn 0.66 0
IV.ATTE.HHZ. 2019-04-10T12:09:08.94 3.0 undecidable manual S -3.22 0
IV.MGAB.HHZ. 2019-04-10T12:09:07.28 0.6 undecidable manual S 36 32.2455 50 0.21 47
IV.TOLF.HHZ. 2019-04-10T12:09:07.50 0.3 undecidable manual P 172 68.7756 50 -0.42 64
IV.MOMA.HNZ. 2019-04-10T12:09:06.42 0.3 undecidable manual P 76 57.9975 50 0.16 69
TV.SF01.EHZ. 2019-04-10T12:09:06.22 0.6 undecidable manual S 300 29.748 50 -0.19 48
TV.SF04.EHZ. 2019-04-10T12:09:05.28 0.6 undecidable manual S 315 25.0527 112 0.16 49
TV.SF13.HHN. 2019-04-10T12:09:05.25 0.6 undecidable manual S 307 26.3514 50 -0.24 48
IV.BARO.EHZ. 2019-04-10T12:09:04.96 0.1 undecidable manual P 164 49.7169 50 -0.02 96
TV.SF03.EHN. 2019-04-10T12:09:04.45 0.6 undecidable manual S 311 21.0678 115 0.6 44
TV.SF14.HHN. 2019-04-10T12:09:03.95 0.6 undecidable manual S 292 23.2545 113 -0.6 44
IV.MCIV.CHZ. 2019-04-10T12:09:03.86 0.6 undecidable manual S 304 19.9689 117 0.34 47
TV.SF01.EHZ. 2019-04-10T12:09:02.01 0.1 undecidable manual P 300 29.748 50 0.1 97
TV.SF11.HHZ. 2019-04-10T12:09:01.43 0.1 negative manual P 322 26.751 50 -0.02 99
TV.SF13.HHN. 2019-04-10T12:09:01.29 0.1 negative manual P 307 26.3514 50 -0.09 98
IV.MGAB.HHZ. 2019-04-10T12:09:01.88 0.1 positive manual P 36 32.2455 50 -0.41 91
TV.SF04.EHZ. 2019-04-10T12:09:01.04 0.1 negative manual P 315 25.0527 112 -0.13 98
TV.SF03.EHN. 2019-04-10T12:09:00.47 0.3 undecidable manual P 311 21.0678 115 0.03 75
IV.LATE.HHZ. 2019-04-10T12:09:00.63 0.6 undecidable manual S 221 9.3795 137 0.1 50
TV.SF14.HHN. 2019-04-10T12:09:00.35 0.1 negative manual P 292 23.2545 113 -0.49 91
IV.MCIV.CHZ. 2019-04-10T12:09:00.17 0.1 negative manual P 304 19.9689 117 -0.08 100
IV.LIK.EHZ.01 2019-04-10T12:08:59.73 3.0 positive manual P -0.9 0
IV.LATE.HHZ. 2019-04-10T12:08:58.66 0.1 positive manual P 221 9.3795 137 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LATE.HHN. ML:2.7 0.0072274725 0.3776 AML other m 2019-04-10T12:09:02.34
IV.LATE.HHE. ML:2.5 0.0043741305 0.1792 AML other m 2019-04-10T12:09:02.57
IV.MCIV.CHE. ML:2.1 0.00093877945 0.256 AML other m 2019-04-10T12:09:06.41
IV.MCIV.CHN. ML:1.9 0.0005608583499999999 0.1216 AML other m 2019-04-10T12:09:04.75
TV.SF04.EHE. ML:2.1 0.0008204628 0.2176 AML other m 2019-04-10T12:09:06.50
TV.SF04.EHN. ML:2.3 0.0011257250000000002 0.1984 AML other m 2019-04-10T12:09:08.18
TV.SF01.EHE. ML:2.0 0.0005606337500000001 0.7616 AML other m 2019-04-10T12:09:17.31
TV.SF01.EHN. ML:2.1 0.0006783945499999999 0.4416 AML other m 2019-04-10T12:09:09.29
IV.BARO.HNE. ML:1.9 0.00022993575 0.4288 AML other m 2019-04-10T12:09:16.16
IV.BARO.HNN. ML:2.0 0.00025931315 0.2624 AML other m 2019-04-10T12:09:12.19
IV.TOLF.HHN. ML:1.8 0.00012083125 0.2752 AML other m 2019-04-10T12:09:18.38
IV.TOLF.HHE. ML:1.8 0.000100995555 0.2624 AML other m 2019-04-10T12:09:17.86
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