Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 23-04-2019 and time 17:48:44 (Italy) in region 3 km NE Castelnuovo di Val di Cecina (PI)

A magnitude ML 2.1 earthquake occured in region: 3 km NE Castelnuovo di Val di Cecina (PI), on

  • 23-04-2019 15:48:44 (UTC)
  • 23-04-2019 17:48:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2330, 10.9300 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Castelnuovo di Val di Cecina PI 3 2231 2231
Pomarance PI 9 5897 8128
Radicondoli SI 10 914 9042
Monterotondo Marittimo GR 11 1371 10413
Montieri GR 13 1204 11617
Casole d'Elsa SI 15 3897 15514
Chiusdino SI 16 1903 17417
Monteverdi Marittimo PI 18 758 18175
Volterra PI 20 10519 28694

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km W of Siena (53903 inhabitants)
55 Km N of Grosseto (82087 inhabitants)
62 Km SE of Livorno (159219 inhabitants)
62 Km SW of Scandicci (50609 inhabitants)
65 Km SW of Firenze (382808 inhabitants)
69 Km SE of Pisa (89158 inhabitants)
73 Km S of Prato (191150 inhabitants)
76 Km SE of Lucca (89046 inhabitants)
78 Km S of Pistoia (90315 inhabitants)
81 Km W of Arezzo (99543 inhabitants)
89 Km SE of Viareggio (62467 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 2019-04-23
15:48:44		 43.233 10.9302 10 2019-08-22
08:25:00		 Bollettino Sismico Italiano INGV 69209051
Reviewed
Rev100 		ML 2.3 2019-04-23
15:48:44		 43.2352 10.9317 7 2019-04-23
16:01:52		 Sala Sismica INGV-Roma 67893591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-23 15:48:44 ± 0.25
Latitude 43.2330 ± 0.0045
Longitude 10.9302 ± 0.0099
Depth (km) 10 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 69209051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 778
Semi-minor axis of confidence ellipse (meter) 330
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 70
Circular confidence region, given by single value of horizontal uncertainty (meter) 780.0
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 48
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.01354
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 28
Type of magnitude ML
Reference to an origin 67893591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-23 16:01:52

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 48
Type of magnitude ML
Reference to an origin 69209051
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-06-04 20:04:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.PLONS.HHZ. 2019-04-23T15:50:32.43 3.0 undecidable manual Sn -0.46 0
IT.VNF1.HGZ. 2019-04-23T15:50:14.62 3.0 undecidable manual Sg 7.63 0
CH.MUGIO.HHZ. 2019-04-23T15:49:37.88 3.0 undecidable manual Pg 6.1 0
IV.APEC.HHZ. 2019-04-23T15:49:22.81 3.0 undecidable manual S -0.87 0
IV.NDIM.HHZ. 2019-04-23T15:49:16.41 3.0 positive manual P 3.22 0
IV.IMOL.HNZ. 2019-04-23T15:49:08.34 3.0 positive manual P 0.41 0
TV.SF14.HHN. 2019-04-23T15:49:07.49 0.3 undecidable manual S 133 76.7676 50 -0.3 69
TV.SF11.HHZ. 2019-04-23T15:49:07.39 0.6 undecidable manual S 123 72.9714 50 0.63 42
IV.MURB.HHZ. 2019-04-23T15:49:06.20 3.0 negative manual P -0.35 0
TV.SF13.HHN. 2019-04-23T15:49:06.98 0.3 undecidable manual S 129 72.372 50 0.36 69
TV.SF01.EHZ. 2019-04-23T15:49:06.06 0.3 undecidable manual S 132 69.375 50 0.23 71
IV.PII.HHZ. 2019-04-23T15:49:04.46 0.6 undecidable manual S 329 63.2922 50 0.27 47
MN.VLC.HHZ. 2019-04-23T15:49:04.03 3.0 positive manual P 0.15 0
IV.CRMI.HHZ. 2019-04-23T15:49:04.23 0.6 undecidable manual S 4 62.493 50 0.24 48
IV.LMD.HHZ. 2019-04-23T15:49:03.78 0.6 undecidable manual P 33 112.4985 50 0.32 43
IV.SFI.HNN. 2019-04-23T15:49:02.60 0.6 undecidable manual P 44 104.8173 50 0.34 43
IV.SEI.HHZ. 2019-04-23T15:49:01.42 0.6 undecidable manual P 21 97.3248 50 0.3 44
IV.MAON.HHZ. 2019-04-23T15:49:00.21 0.6 undecidable manual P 170 90.7425 50 0.11 47
IV.MOCL.EHZ. 2019-04-23T15:49:00.01 0.6 undecidable manual P 13 87.9453 50 0.34 45
IV.CRE.HHZ. 2019-04-23T15:49:00.90 0.6 undecidable manual P 62 92.7405 50 0.49 43
GU.POPM.HHZ. 2019-04-23T15:49:00.26 0.3 undecidable manual P 351 91.1421 50 0.1 70
GU.CARD.HHZ. 2019-04-23T15:49:00.42 0.6 undecidable manual P 338 95.0382 50 -0.34 44
IV.ASQU.HHZ. 2019-04-23T15:49:00.24 0.6 undecidable manual P 48 93.24 50 -0.24 45
IV.BDI.HHZ. 2019-04-23T15:49:00.85 0.6 undecidable manual P 344 95.9262 50 -0.04 47
GU.MAIM.HHZ. 2019-04-23T15:48:59.09 0.6 undecidable manual P 335 83.3499 50 0.12 47
IV.MTCR.EHZ. 2019-04-23T15:48:59.92 0.3 undecidable manual P 4 88.3449 50 0.19 69
IV.CAFI.HHZ. 2019-04-23T15:48:59.07 0.6 undecidable manual P 82 84.3489 50 -0.05 48
IV.RUFI.EHZ. 2019-04-23T15:48:58.19 0.3 undecidable manual P 35 81.6516 50 -0.51 65
TV.SF03.EHN. 2019-04-23T15:48:58.00 0.6 undecidable manual P 128 77.6667 50 -0.09 48
IV.CELB.HHZ. 2019-04-23T15:48:58.87 0.3 undecidable manual P 227 79.4649 50 0.5 66
IV.MPPT.EHZ. 2019-04-23T15:48:58.17 0.3 undecidable manual P 9 81.3519 50 -0.49 66
IV.OSSC.HHZ. 2019-04-23T15:48:57.89 0.3 undecidable manual S 38 41.0256 50 -0.37 73
TV.SF04.EHZ. 2019-04-23T15:48:57.82 0.3 undecidable manual P 126 73.8705 50 0.33 69
TV.SF11.HHZ. 2019-04-23T15:48:57.60 0.3 undecidable manual P 123 72.9714 50 0.25 70
TV.SF13.HHN. 2019-04-23T15:48:57.42 0.3 undecidable manual P 129 72.372 50 0.15 72
TV.SF14.HHN. 2019-04-23T15:48:57.44 0.3 undecidable manual P 133 76.7676 50 -0.51 66
TV.SF01.EHZ. 2019-04-23T15:48:57.19 0.3 undecidable manual P 132 69.375 50 0.38 69
IV.CRMI.HHZ. 2019-04-23T15:48:55.73 0.1 positive manual P 4 62.493 50 -0.02 100
IV.PII.HHZ. 2019-04-23T15:48:55.81 0.6 undecidable manual P 329 63.2922 50 -0.06 50
IV.RIBO.EHZ. 2019-04-23T15:48:55.42 0.3 undecidable manual S 163 32.8449 50 -0.65 67
IV.CASP.HHZ. 2019-04-23T15:48:53.60 0.3 undecidable manual P 186 49.3173 50 -0.12 75
IV.OSSC.HHZ. 2019-04-23T15:48:52.03 0.3 undecidable manual P 38 41.0256 50 -0.41 72
IV.RIBO.EHZ. 2019-04-23T15:48:50.62 0.3 undecidable manual P 163 32.8449 50 -0.56 70
IV.FROS.CHZ. 2019-04-23T15:48:50.80 3.0 undecidable manual S -0.15 0
IV.TRIF.CHZ. 2019-04-23T15:48:49.47 3.0 undecidable manual S 0.04 0
IV.FROS.CHZ. 2019-04-23T15:48:48.07 3.0 undecidable manual P 0 0
IV.MAGO.CHZ. 2019-04-23T15:48:48.95 3.0 undecidable manual P 0.09 0
IV.TRIF.CHZ. 2019-04-23T15:48:47.43 3.0 undecidable manual P 0.24 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TRIF.CHN. ML:2.8 0.0068420365 0.128 AML other m 2019-04-23T15:48:49.59
IV.TRIF.CHE. ML:2.9 0.008790105999999999 0.1024 AML other m 2019-04-23T15:48:50.30
IV.FROS.CHE. ML:2.4 0.0021500564999999998 0.192 AML other m 2019-04-23T15:48:52.51
IV.FROS.CHN. ML:2.4 0.0021454300000000003 0.192 AML other m 2019-04-23T15:48:53.32
IV.MAGO.CHE. ML:2.4 0.001535216 0.1536 AML other m 2019-04-23T15:48:52.65
IV.MAGO.CHN. ML:2.1 0.0008850215999999999 0.1024 AML other m 2019-04-23T15:48:52.74
IV.RIBO.EHE.01 ML:2.6 0.0016585559999999998 0.2176 AML other m 2019-04-23T15:48:57.00
IV.OSSC.HHE. ML:2.2 0.0005997542 0.1664 AML other m 2019-04-23T15:48:58.34
IV.OSSC.HNE. ML:2.2 0.0005632765 0.128 AML other m 2019-04-23T15:48:58.66
IV.OSSC.HNN. ML:2.2 0.00057619485 0.1408 AML other m 2019-04-23T15:48:58.41
IV.OSSC.HHN. ML:2.2 0.00055864925 0.1408 AML other m 2019-04-23T15:48:58.66
IV.CASP.HHN. ML:2.3 0.00055607485 0.2176 AML other m 2019-04-23T15:49:00.24
IV.CASP.HHE. ML:2.2 0.0003954691 0.2048 AML other m 2019-04-23T15:49:04.36
IV.CRMI.HNE. ML:1.9 0.00014418135 0.512 AML other m 2019-04-23T15:49:05.16
IV.CRMI.HNN. ML:1.7 0.00009586929499999999 0.2304 AML other m 2019-04-23T15:48:56.73
IV.CRMI.HHE. ML:1.5 0.00005967463000000001 0.512 AML other m 2019-04-23T15:49:05.16
IV.CRMI.HHN. ML:1.3 0.00003890971 0.2304 AML other m 2019-04-23T15:48:56.73
IV.PII.HHE. ML:2.3 0.00037288075 0.2432 AML other m 2019-04-23T15:49:06.01
IV.PII.HHN. ML:2.3 0.00035002535 0.32 AML other m 2019-04-23T15:49:04.52
TV.SF01.EHE. ML:2.6 0.0006610180999999999 0.32 AML other m 2019-04-23T15:49:06.61
TV.SF01.EHN. ML:2.4 0.00047435730000000006 0.256 AML other m 2019-04-23T15:49:06.63
TV.SF04.EHN. ML:2.4 0.00039983505 0.1792 AML other m 2019-04-23T15:49:08.65
TV.SF04.EHE. ML:2.4 0.00039941895 0.1664 AML other m 2019-04-23T15:49:08.49
IV.MPPT.EHN. ML:1.7 0.000068996085 0.1152 AML other m 2019-04-23T15:48:59.41
IV.MPPT.EHE. ML:1.7 0.000065764915 0.2432 AML other m 2019-04-23T15:49:13.07
IV.RUFI.EHE. ML:2.0 0.000145696665 0.4096 AML other m 2019-04-23T15:49:11.11
IV.RUFI.EHN. ML:1.9 0.00009909715999999999 0.256 AML other m 2019-04-23T15:49:10.78
IV.CELB.HHN. ML:2.1 0.00016210665 0.128 AML other m 2019-04-23T15:49:11.37
IV.CELB.HHE. ML:2.2 0.00019706189999999998 0.1024 AML other m 2019-04-23T15:49:12.94
IV.MTCR.EHE. ML:1.9 0.00008970502 0.2304 AML other m 2019-04-23T15:49:03.48
IV.MOCL.EHN. ML:2.1 0.00013899384999999998 0.2304 AML other m 2019-04-23T15:49:05.14
IV.MOCL.EHE. ML:1.9 0.000090867915 0.3456 AML other m 2019-04-23T15:49:06.84
IV.MAON.HHE. ML:2.4 0.0003203102 0.2176 AML other m 2019-04-23T15:49:12.83
IV.MAON.HHN. ML:2.4 0.0002781206 0.1408 AML other m 2019-04-23T15:49:01.45
IV.ASQU.HHE. ML:1.8 0.00007105122499999999 0.576 AML other m 2019-04-23T15:49:13.21
IV.ASQU.HHN. ML:1.7 0.000061956955 0.6144 AML other m 2019-04-23T15:49:18.77
GU.POPM.HHN. ML:2.2 0.00017941455 0.256 AML other m 2019-04-23T15:49:15.19
GU.POPM.HHE. ML:2.2 0.0001796319 0.2048 AML other m 2019-04-23T15:49:15.06
GU.CARD.HHN. ML:2.0 0.00009310313 0.1536 AML other m 2019-04-23T15:49:15.83
GU.CARD.HHE. ML:1.9 0.00008843054 0.32 AML other m 2019-04-23T15:49:18.26
IV.BDI.HHE. ML:1.8 0.000060827905 0.256 AML other m 2019-04-23T15:49:16.28
IV.BDI.HHN. ML:1.8 0.000058721385 0.384 AML other m 2019-04-23T15:49:17.32
IV.CRE.HHN. ML:1.9 0.000096371105 0.4992 AML other m 2019-04-23T15:49:17.56
IV.CRE.HHE. ML:1.8 0.000075302675 0.2944 AML other m 2019-04-23T15:49:17.96
IV.SEI.HHN. ML:2.5 0.00029357335 0.3584 AML other m 2019-04-23T15:49:19.83
IV.SEI.HHE. ML:2.2 0.0001724545 0.4736 AML other m 2019-04-23T15:49:16.22
IV.LMD.HHE. ML:1.9 0.00006919701000000001 0.3968 AML other m 2019-04-23T15:49:20.60
IV.LMD.HHN. ML:1.9 0.000058663635 0.8832 AML other m 2019-04-23T15:49:23.76
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