Earthquake with magnitude of Md 2.4 on date 16-07-1991 and time 04:12:28 (Italy) in region Golfo di Napoli e Capri (Napoli)

A magnitude Md 2.4 earthquake occured in region: Golfo di Napoli e Capri (Napoli), on

  • 16-07-1991 02:12:28 (UTC)
  • 16-07-1991 04:12:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.717, 14.414 at 13 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
Torre Annunziata NA 6 42789 42789
Vico Equense NA 6 20969 63758
Castellammare di Stabia NA 6 66466 130224
Trecase NA 6 9097 139321
Boscotrecase NA 8 10363 149684
Meta NA 8 8015 157699
Pompei NA 8 25358 183057
Santa Maria la Carità NA 8 11722 194779
Boscoreale NA 8 28072 222851
Torre del Greco NA 9 86275 309126
Piano di Sorrento NA 9 13109 322235
Sant'Agnello NA 9 9122 331357
Gragnano NA 10 29136 360493
Pimonte NA 10 5980 366473
Casola di Napoli NA 10 3898 370371
Sorrento NA 10 16679 387050
Scafati SA 10 50787 437837
Lettere NA 11 6188 444025
Sant'Antonio Abate NA 11 19743 463768
Positano SA 11 3955 467723
Ercolano NA 12 53709 521432
Terzigno NA 12 18968 540400
Massa Lubrense NA 13 14243 554643
Portici NA 13 55274 609917
Angri SA 13 34002 643919
Poggiomarino NA 14 21976 665895
Agerola NA 14 7673 673568
San Giorgio a Cremano NA 14 45557 719125
San Sebastiano al Vesuvio NA 14 9196 728321
Massa di Somma NA 15 5444 733765
Corbara SA 15 2545 736310
San Giuseppe Vesuviano NA 15 30657 766967
Praiano SA 15 2047 769014
Furore SA 16 776 769790
Sant'Egidio del Monte Albino SA 16 8909 778699
Ottaviano NA 16 23860 802559
Pollena Trocchia NA 16 13562 816121
San Marzano sul Sarno SA 16 10442 826563
Cercola NA 17 18267 844830
Sant'Anastasia NA 17 27671 872501
Somma Vesuviana NA 17 35233 907734
Conca dei Marini SA 17 696 908430
Striano NA 18 8397 916827
Pagani SA 18 35834 952661
Scala SA 18 1533 954194
San Valentino Torio SA 18 10947 965141
Ravello SA 18 2490 967631
Amalfi SA 19 5149 972780
Atrani SA 19 846 973626
San Gennaro Vesuviano NA 19 11966 985592
Volla NA 19 23755 1009347
Tramonti SA 19 4171 1013518
Minori SA 19 2752 1016270
Napoli NA 19 974074 1990344
Nocera Inferiore SA 20 46043 2036387

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km W of Castellammare di Stabia (66466 inhabitants)
9 Km SE of Torre del Greco (86275 inhabitants)
10 Km W of Scafati (50787 inhabitants)
12 Km SE of Ercolano (53709 inhabitants)
13 Km SE of Portici (55274 inhabitants)
19 Km SE of Napoli (974074 inhabitants)
24 Km SE of Casoria (77642 inhabitants)
25 Km SE of Afragola (65057 inhabitants)
25 Km W of Cava de' Tirreni (53659 inhabitants)
26 Km S of Acerra (59573 inhabitants)
28 Km SE of Marano di Napoli (59874 inhabitants)
30 Km W of Salerno (135261 inhabitants)
30 Km SE of Giugliano in Campania (122974 inhabitants)
31 Km E of Pozzuoli (81661 inhabitants)
34 Km SE of Aversa (53047 inhabitants)
39 Km SW of Avellino (54857 inhabitants)
41 Km S of Caserta (76326 inhabitants)
50 Km W of Battipaglia (50786 inhabitants)
55 Km SW of Benevento (60091 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
Md 2.4
ML-VAX 2.3
1991-07-16
02:12:28
40.717 14.414 13 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 145519
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-07-16 02:12:28 ± 0.387
Latitude 40.7170 ± 0.0325
Longitude 14.4140 ± 0.0370
Depth (km) 13 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 145519

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 4770.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 207
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00599
Epicentral distance of station farthest from the epicenter (degree) 0.00979
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 145519
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:15:51

ML:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 145519
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SDI.Z. 1991-07-16T02:13:04.34 10.0 undecidable manual SN 335 0.0098 0.32 0.5
--.MGR.Z. 1991-07-16T02:13:02.49 10.0 undecidable manual SN 123 0.0094 -0.42 0.4
--.RFI.Z. 1991-07-16T02:12:52.15 10.0 undecidable manual SG 330 0.006 0.55 0.3
--.SGO.Z. 1991-07-16T02:12:52.20 10.0 undecidable manual SG 102 0.0062 -0.33 0.6
--.SDI.Z. 1991-07-16T02:12:48.62 10.0 undecidable manual PN 335 0.0098 -0.28 1.5
--.MGR.Z. 1991-07-16T02:12:48.60 10.0 undecidable manual PN 123 0.0094 0.34 1.3
--.SGO.Z. 1991-07-16T02:12:42.48 10.0 undecidable manual PG 102 0.0062 0.22 2
--.RFI.Z. 1991-07-16T02:12:41.38 10.0 undecidable manual PG 330 0.006 -0.35 1.4
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