Earthquake with magnitude of ML 2.1 on date 20-05-2006 and time 11:19:17 (UTC) in region 2 km NW Valva (SA)

A magnitude ML 2.1 earthquake occured in region: 2 km NW Valva (SA), on

  • 20-05-2006 11:19:17 (UTC)
  • 20-05-2006 13:19:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.7570, 15.2610 at 8 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
Valva SA 2 1643 1643
Colliano SA 4 3638 5281
Calabritto AV 5 2391 7672
Senerchia AV 5 842 8514
Laviano SA 5 1438 9952
Caposele AV 7 3483 13435
Oliveto Citra SA 7 3802 17237
Santomenna SA 8 443 17680
Castelnuovo di Conza SA 9 619 18299
Teora AV 11 1537 19836
Palomonte SA 11 3985 23821
Contursi Terme SA 12 3394 27215
Conza della Campania AV 13 1373 28588
Sant'Andrea di Conza AV 14 1539 30127
Pescopagano PZ 15 1910 32037
Lioni AV 15 6201 38238
Castelgrande PZ 15 943 39181
San Gregorio Magno SA 16 4286 43467
Campagna SA 16 16703 60170
Buccino SA 17 5047 65217
Acerno SA 17 2783 68000
Cairano AV 18 326 68326
Bagnoli Irpino AV 18 3217 71543
Morra De Sanctis AV 19 1297 72840
Muro Lucano PZ 19 5497 78337

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NE of Battipaglia (50786 inhabitants)
43 Km E of Avellino (54857 inhabitants)
43 Km E of Salerno (135261 inhabitants)
47 Km E of Cava de' Tirreni (53659 inhabitants)
48 Km W of Potenza (67122 inhabitants)
58 Km SE of Benevento (60091 inhabitants)
62 Km E of Scafati (50787 inhabitants)
66 Km E of Castellammare di Stabia (66466 inhabitants)
75 Km E of Torre del Greco (86275 inhabitants)
77 Km E of Portici (55274 inhabitants)
77 Km E of Ercolano (53709 inhabitants)
78 Km E of Acerra (59573 inhabitants)
78 Km SW of Cerignola (58396 inhabitants)
82 Km S of Foggia (151991 inhabitants)
82 Km E of Afragola (65057 inhabitants)
83 Km E of Casoria (77642 inhabitants)
86 Km E of Napoli (974074 inhabitants)
86 Km E of Caserta (76326 inhabitants)
91 Km E of Giugliano in Campania (122974 inhabitants)
91 Km E of Marano di Napoli (59874 inhabitants)
92 Km E of Aversa (53047 inhabitants)
99 Km E of Pozzuoli (81661 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 2.6
ML 2.1
2006-05-20
11:19:17
40.757 15.261 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 569439
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2006-05-20 11:19:17 ± 0.06
Latitude 40.7570 ± 0.0036
Longitude 15.2610 ± 0.0059
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 569439

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 470
Semi-minor axis of confidence ellipse (meter) 367
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 131
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.83367
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 569439
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:55:55

Md:2.6

Field Value
Value 2.6
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 569439
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:55:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CMPR.HHZ. 2006-05-20T11:19:34.14 0.1 undecidable manual Sg 176 48.8178 0.261 45
IV.SCHR.EHZ. 2006-05-20T11:19:33.84 0.1 undecidable manual Pg 132 92.5407 0.005 87
IV.MGR.BHE. 2006-05-20T11:19:30.96 0.1 undecidable manual Pg 160 72.9714 0.132 88
IV.CDRU.HHN. 2006-05-20T11:19:29.03 0.1 undecidable manual Sg 173 29.8479 0.421 45
IV.SGTA.HHE. 2006-05-20T11:19:28.35 10.0 undecidable manual Pg 0 0 0
IV.FG4.SHZ. 2006-05-20T11:19:27.45 10.0 undecidable manual Pg 0 0 0
IV.SLCN.BHZ. 2006-05-20T11:19:27.38 0.1 undecidable manual Pg 142 51.3153 -0.116 92
IV.CMPR.HHZ. 2006-05-20T11:19:26.79 0.1 undecidable manual Pg 176 48.8178 -0.31 89
IV.MRLC.HHZ. 2006-05-20T11:19:25.37 0.1 undecidable manual Sg 90 19.1697 0.255 47
IV.VULT.HHZ. 2006-05-20T11:19:25.47 0.1 undecidable manual Pg 53 37.0296 0.177 93
IV.SBPO.BHN. 2006-05-20T11:19:24.55 10.0 undecidable manual Pg 0 0 0
IV.CAFE.HHE. 2006-05-20T11:19:24.03 0.1 undecidable manual Pg 356 30.1476 -0.085 96
IV.CDRU.HHN. 2006-05-20T11:19:23.81 0.1 undecidable manual Pg 173 29.8479 -0.248 93
IV.SGO.SHZ. 2006-05-20T11:19:22.69 0.1 undecidable manual Pg 170 22.1556 0.106 97
IV.SNAL.HHZ. 2006-05-20T11:19:22.19 0.1 undecidable manual Pg 347 19.1697 0.143 97
IV.CSSN.SHZ. 2006-05-20T11:19:22.84 0.1 undecidable manual Pg 300 22.9548 0.088 97
IV.MRLC.HHZ. 2006-05-20T11:19:21.76 0.1 undecidable manual Pg 90 19.1697 -0.278 94
IV.MCRV.HHE. 2006-05-20T11:19:21.99 0.1 undecidable manual Sg 290 8.2806 0.028 50
IV.MCRV.HHE. 2006-05-20T11:19:20.14 0.1 undecidable manual Pg 290 8.2806 -0.077 100
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