Earthquake (controlled explosion) with magnitude of ML 1.6 on date 27-02-2019 and time 11:24:04 (UTC) in region Golfo di Napoli e Capri (Napoli)

A magnitude ML 1.6 (controlled explosion) earthquake occured in region: Golfo di Napoli e Capri (Napoli), on

  • 27-02-2019 11:24:04 (UTC)
  • 27-02-2019 12:24:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.76, 14.33 at 0 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Event type: controlled explosion.

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
Torre del Greco NA 4 86275 86275
Ercolano NA 6 53709 139984
Portici NA 8 55274 195258
San Giorgio a Cremano NA 8 45557 240815
Trecase NA 9 9097 249912
Torre Annunziata NA 10 42789 292701
San Sebastiano al Vesuvio NA 10 9196 301897
Massa di Somma NA 11 5444 307341
Boscotrecase NA 11 10363 317704
Napoli NA 11 974074 1291778
Cercola NA 12 18267 1310045
Pollena Trocchia NA 12 13562 1323607
Boscoreale NA 12 28072 1351679
Vico Equense NA 13 20969 1372648
Sant'Anastasia NA 14 27671 1400319
Volla NA 14 23755 1424074
Pompei NA 14 25358 1449432
Meta NA 14 8015 1457447
Castellammare di Stabia NA 14 66466 1523913
Sant'Agnello NA 15 9122 1533035
Sorrento NA 15 16679 1549714
Terzigno NA 15 18968 1568682
Piano di Sorrento NA 15 13109 1581791
Somma Vesuviana NA 15 35233 1617024
Santa Maria la Carità NA 16 11722 1628746
Ottaviano NA 16 23860 1652606
Massa Lubrense NA 16 14243 1666849
Scafati SA 16 50787 1717636
Casavatore NA 17 18661 1736297
Casoria NA 17 77642 1813939
San Giuseppe Vesuviano NA 17 30657 1844596
Pomigliano d'Arco NA 17 39922 1884518
Gragnano NA 18 29136 1913654
Casalnuovo di Napoli NA 18 49855 1963509
Arzano NA 18 34886 1998395
Pimonte NA 18 5980 2004375
Casola di Napoli NA 18 3898 2008273
Poggiomarino NA 18 21976 2030249
Sant'Antonio Abate NA 19 19743 2049992
Afragola NA 19 65057 2115049
Lettere NA 19 6188 2121237
Castello di Cisterna NA 19 7869 2129106
Positano SA 19 3955 2133061
Brusciano NA 20 16466 2149527
Marano di Napoli NA 20 59874 2209401
Mugnano di Napoli NA 20 34828 2244229

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km SW of Torre del Greco (86275 inhabitants)
6 Km S of Ercolano (53709 inhabitants)
8 Km S of Portici (55274 inhabitants)
11 Km SE of Napoli (974074 inhabitants)
14 Km NW of Castellammare di Stabia (66466 inhabitants)
16 Km W of Scafati (50787 inhabitants)
17 Km S of Casoria (77642 inhabitants)
19 Km S of Afragola (65057 inhabitants)
20 Km SE of Marano di Napoli (59874 inhabitants)
21 Km S of Acerra (59573 inhabitants)
22 Km SE of Giugliano in Campania (122974 inhabitants)
23 Km E of Pozzuoli (81661 inhabitants)
26 Km SE of Aversa (53047 inhabitants)
32 Km W of Cava de' Tirreni (53659 inhabitants)
35 Km S of Caserta (76326 inhabitants)
37 Km W of Salerno (135261 inhabitants)
43 Km W of Avellino (54857 inhabitants)
56 Km SW of Benevento (60091 inhabitants)
57 Km W of Battipaglia (50786 inhabitants)
Recent and historical Seismicity
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 100 ML 1.6 2019-02-27
11:24:04
40.76 14.33 0 2019-02-27
15:25:38
Sala Sismica INGV-Roma 66024161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-27 11:24:04 ± 0.2
Latitude 40.76 ± 0.00
Longitude 14.33 ± 0.00
Depth (km) 0 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type controlled explosion
Origin ID 66024161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 0
Semi-minor axis of confidence ellipse (meter) 0
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 0
Circular confidence region, given by single value of horizontal uncertainty (meter) 0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 249
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 5
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.16278
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.5
Num. used stations 2
Type of magnitude ML
Reference to an origin 66024161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-27 15:25:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
MN.TIR.HHZ. 2019-02-27T11:25:57.35 3.0 undecidable manual Sn -1.12 0
IV.CMDO.HHZ. 2019-02-27T11:25:37.67 3.0 undecidable manual Sn 0.06 0
IV.ALJA.HHZ. 2019-02-27T11:25:30.45 3.0 undecidable manual Sn -0.31 0
IV.NARO.HHZ. 2019-02-27T11:25:20.55 3.0 undecidable manual Sn 0.19 0
IV.PE3.EHZ. 2019-02-27T11:25:18.06 3.0 undecidable manual Sn -4.8 0
IV.NDIM.HHZ. 2019-02-27T11:25:18.40 3.0 positive manual Pg 9.77 0
IV.CSNT.HHZ. 2019-02-27T11:25:00.83 3.0 undecidable manual Pg 10.17 0
IV.LNSS.HHZ. 2019-02-27T11:24:57.24 3.0 undecidable manual Sg 2.69 0
IV.SRES.HHZ. 2019-02-27T11:24:50.00 3.0 undecidable manual Sn -2.72 0
IX.SFL3.HNZ.01 2019-02-27T11:24:40.73 3.0 undecidable manual S 1.09 0
IV.SALB.HHZ. 2019-02-27T11:24:38.78 3.0 undecidable manual Pg 3.89 0
IV.MC2.EHZ. 2019-02-27T11:24:35.90 3.0 undecidable manual Pg 1.71 0
IV.ARRO.EHZ. 2019-02-27T11:24:32.10 3.0 undecidable manual Pg 0.18 0
IV.TRIV.HHZ. 2019-02-27T11:24:25.40 3.0 undecidable manual S -4.93 0
IV.CSFT.HHE. 2019-02-27T11:24:14.88 0.6 undecidable manual P 296 0.1628 90 0.3 50
IV.OVO.HHZ. 2019-02-27T11:24:10.31 0.1 undecidable manual P 35 0.0845 91 0.42 99
IV.VBKN.HHZ. 2019-02-27T11:24:10.62 0.1 undecidable manual P 46 0.1025 91 -0.36 100
IV.CRTO.HHZ. 2019-02-27T11:24:10.75 0.3 undecidable manual P 47 0.0926 91 0.38 75
IV.VVDG.HHE. 2019-02-27T11:24:10.54 0.1 undecidable manual P 42 0.1034 90 -0.5 97
IV.LIK.EHZ.01 2019-02-27T11:24:08.07 3.0 negative manual P -5.14 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.OVO.HHE. ML:2.3 0.0028525585 0.2816 AML other m 2019-02-27T11:24:13.67
IV.OVO.HHN. ML:2.4 0.0038230525 0.3968 AML other m 2019-02-27T11:24:15.99
IV.VBKN.HHN. ML:2 0.001677796 0.1792 AML other m 2019-02-27T11:24:13.60
IV.CRTO.HHE. ML:2.7 0.00868078 0.3392 AML other m 2019-02-27T11:24:14.56
IV.PAOL.HHE. ML:1.2 7.0195595E-5 0.32 AML other m 2019-02-27T11:24:16.64
TDMT - Time Domain Moment Tensor
Focal Mechanism 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 full SEED format Download