Earthquake with magnitude of ML 2.1 on date 23-04-2019 and time 15:48:44 (UTC) 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) 43.23, 10.93 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
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

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours) *

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985 *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire *

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 1000 ML 2.1 2019-04-23
15:48:44
43.23 10.93 10 2019-08-22
08:25:00
Bollettino Sismico Italiano INGV 69209051
Rev 100 ML 2.3 2019-04-23
15:48:44
43.24 10.93 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 43.23 ± 0.00
Longitude 10.93 ± 0.01
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
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
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:2.1

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

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
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance 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 0.6916 50 -0.3 69
TV.SF11.HHZ. 2019-04-23T15:49:07.39 0.6 undecidable manual S 123 0.6574 50 0.63 42
TV.SF01.EHZ. 2019-04-23T15:49:06.06 0.3 undecidable manual S 132 0.625 50 0.23 71
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 0.652 50 0.36 69
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 0.563 50 0.24 48
IV.PII.HHZ. 2019-04-23T15:49:04.46 0.6 undecidable manual S 329 0.5702 50 0.27 47
IV.LMD.HHZ. 2019-04-23T15:49:03.78 0.6 undecidable manual P 33 1.0135 50 0.32 43
IV.SFI.HNN. 2019-04-23T15:49:02.60 0.6 undecidable manual P 44 0.9443 50 0.34 43
IV.SEI.HHZ. 2019-04-23T15:49:01.42 0.6 undecidable manual P 21 0.8768 50 0.3 44
IV.CRE.HHZ. 2019-04-23T15:49:00.90 0.6 undecidable manual P 62 0.8355 50 0.49 43
GU.POPM.HHZ. 2019-04-23T15:49:00.26 0.3 undecidable manual P 351 0.8211 50 0.1 70
GU.CARD.HHZ. 2019-04-23T15:49:00.42 0.6 undecidable manual P 338 0.8562 50 -0.34 44
IV.ASQU.HHZ. 2019-04-23T15:49:00.24 0.6 undecidable manual P 48 0.84 50 -0.24 45
IV.BDI.HHZ. 2019-04-23T15:49:00.85 0.6 undecidable manual P 344 0.8642 50 -0.04 47
IV.MAON.HHZ. 2019-04-23T15:49:00.21 0.6 undecidable manual P 170 0.8175 50 0.11 47
IV.MOCL.EHZ. 2019-04-23T15:49:00.01 0.6 undecidable manual P 13 0.7923 50 0.34 45
IV.MTCR.EHZ. 2019-04-23T15:48:59.92 0.3 undecidable manual P 4 0.7959 50 0.19 69
IV.CAFI.HHZ. 2019-04-23T15:48:59.07 0.6 undecidable manual P 82 0.7599 50 -0.05 48
GU.MAIM.HHZ. 2019-04-23T15:48:59.09 0.6 undecidable manual P 335 0.7509 50 0.12 47
IV.RUFI.EHZ. 2019-04-23T15:48:58.19 0.3 undecidable manual P 35 0.7356 50 -0.51 65
IV.CELB.HHZ. 2019-04-23T15:48:58.87 0.3 undecidable manual P 227 0.7159 50 0.5 66
TV.SF03.EHN. 2019-04-23T15:48:58.00 0.6 undecidable manual P 128 0.6997 50 -0.09 48
IV.MPPT.EHZ. 2019-04-23T15:48:58.17 0.3 undecidable manual P 9 0.7329 50 -0.49 66
TV.SF11.HHZ. 2019-04-23T15:48:57.60 0.3 undecidable manual P 123 0.6574 50 0.25 70
TV.SF13.HHN. 2019-04-23T15:48:57.42 0.3 undecidable manual P 129 0.652 50 0.15 72
TV.SF01.EHZ. 2019-04-23T15:48:57.19 0.3 undecidable manual P 132 0.625 50 0.38 69
TV.SF14.HHN. 2019-04-23T15:48:57.44 0.3 undecidable manual P 133 0.6916 50 -0.51 66
IV.OSSC.HHZ. 2019-04-23T15:48:57.89 0.3 undecidable manual S 38 0.3696 50 -0.37 73
TV.SF04.EHZ. 2019-04-23T15:48:57.82 0.3 undecidable manual P 126 0.6655 50 0.33 69
IV.CRMI.HHZ. 2019-04-23T15:48:55.73 0.1 positive manual P 4 0.563 50 -0.02 100
IV.PII.HHZ. 2019-04-23T15:48:55.81 0.6 undecidable manual P 329 0.5702 50 -0.06 50
IV.RIBO.EHZ. 2019-04-23T15:48:55.42 0.3 undecidable manual S 163 0.2959 50 -0.65 67
IV.CASP.HHZ. 2019-04-23T15:48:53.60 0.3 undecidable manual P 186 0.4443 50 -0.12 75
IV.OSSC.HHZ. 2019-04-23T15:48:52.03 0.3 undecidable manual P 38 0.3696 50 -0.41 72
IV.FROS.CHZ. 2019-04-23T15:48:50.80 3.0 undecidable manual S -0.15 0
IV.RIBO.EHZ. 2019-04-23T15:48:50.62 0.3 undecidable manual P 163 0.2959 50 -0.56 70
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 0.008790106 0.1024 AML other m 2019-04-23T15:48:50.30
IV.FROS.CHE. ML:2.4 0.0021500565 0.192 AML other m 2019-04-23T15:48:52.51
IV.FROS.CHN. ML:2.4 0.00214543 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 0.0008850216 0.1024 AML other m 2019-04-23T15:48:52.74
IV.RIBO.EHE.01 ML:2.6 0.001658556 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 9.5869295E-5 0.2304 AML other m 2019-04-23T15:48:56.73
IV.CRMI.HHE. ML:1.5 5.967463E-5 0.512 AML other m 2019-04-23T15:49:05.16
IV.CRMI.HHN. ML:1.3 3.890971E-5 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 0.0006610181 0.32 AML other m 2019-04-23T15:49:06.61
TV.SF01.EHN. ML:2.4 0.0004743573 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 6.8996085E-5 0.1152 AML other m 2019-04-23T15:48:59.41
IV.MPPT.EHE. ML:1.7 6.5764915E-5 0.2432 AML other m 2019-04-23T15:49:13.07
IV.RUFI.EHE. ML:2 0.000145696665 0.4096 AML other m 2019-04-23T15:49:11.11
IV.RUFI.EHN. ML:1.9 9.909716E-5 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 0.0001970619 0.1024 AML other m 2019-04-23T15:49:12.94
IV.MTCR.EHE. ML:1.9 8.970502E-5 0.2304 AML other m 2019-04-23T15:49:03.48
IV.MOCL.EHN. ML:2.1 0.00013899385 0.2304 AML other m 2019-04-23T15:49:05.14
IV.MOCL.EHE. ML:1.9 9.0867915E-5 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 7.1051225E-5 0.576 AML other m 2019-04-23T15:49:13.21
IV.ASQU.HHN. ML:1.7 6.1956955E-5 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 9.310313E-5 0.1536 AML other m 2019-04-23T15:49:15.83
GU.CARD.HHE. ML:1.9 8.843054E-5 0.32 AML other m 2019-04-23T15:49:18.26
IV.BDI.HHE. ML:1.8 6.0827905E-5 0.256 AML other m 2019-04-23T15:49:16.28
IV.BDI.HHN. ML:1.8 5.8721385E-5 0.384 AML other m 2019-04-23T15:49:17.32
IV.CRE.HHN. ML:1.9 9.6371105E-5 0.4992 AML other m 2019-04-23T15:49:17.56
IV.CRE.HHE. ML:1.8 7.5302675E-5 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 6.919701E-5 0.3968 AML other m 2019-04-23T15:49:20.60
IV.LMD.HHN. ML:1.9 5.8663635E-5 0.8832 AML other m 2019-04-23T15:49:23.76
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
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 full SEED format Download