Earthquake with magnitude of Md 2.6 on date 06-03-1986 and time 01:36:00 (Italy) in region 2 km SW Valva (SA)

A magnitude Md 2.6 earthquake occured in region: 2 km SW Valva (SA), on

  • 06-03-1986 00:36:00 (UTC)
  • 06-03-1986 01:36:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.73, 15.25 at 5 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
Senerchia AV 4 842 6123
Oliveto Citra SA 4 3802 9925
Calabritto AV 7 2391 12316
Laviano SA 8 1438 13754
Palomonte SA 8 3985 17739
Contursi Terme SA 9 3394 21133
Caposele AV 10 3483 24616
Santomenna SA 11 443 25059
Castelnuovo di Conza SA 12 619 25678
Teora AV 14 1537 27215
Campagna SA 14 16703 43918
Buccino SA 15 5047 48965
San Gregorio Magno SA 15 4286 53251
Acerno SA 16 2783 56034
Conza della Campania AV 16 1373 57407
Sant'Andrea di Conza AV 17 1539 58946
Castelgrande PZ 17 943 59889
Serre SA 17 3995 63884
Pescopagano PZ 17 1910 65794
Lioni AV 17 6201 71995
Postiglione SA 19 2151 74146
Romagnano al Monte SA 19 368 74514
Bagnoli Irpino AV 19 3217 77731
Sicignano degli Alburni SA 19 3519 81250
Muro Lucano PZ 20 5497 86747

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NE of Battipaglia (50786 inhabitants)
42 Km E of Salerno (135261 inhabitants)
44 Km E of Avellino (54857 inhabitants)
46 Km E of Cava de' Tirreni (53659 inhabitants)
48 Km W of Potenza (67122 inhabitants)
60 Km SE of Benevento (60091 inhabitants)
61 Km E of Scafati (50787 inhabitants)
65 Km E of Castellammare di Stabia (66466 inhabitants)
75 Km E of Torre del Greco (86275 inhabitants)
76 Km E of Portici (55274 inhabitants)
77 Km E of Ercolano (53709 inhabitants)
78 Km E of Acerra (59573 inhabitants)
81 Km SW of Cerignola (58396 inhabitants)
82 Km E of Afragola (65057 inhabitants)
83 Km E of Casoria (77642 inhabitants)
85 Km E of Napoli (974074 inhabitants)
85 Km S of Foggia (151991 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
Rev 1000 Md 2.6 1986-03-06
00:36:00
40.73 15.25 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 23709
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-03-06 00:36:00 ± 0.263
Latitude 40.73 ± 0.01
Longitude 15.25 ± 0.03
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 23709

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) 3234
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.01012
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 23709
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:25:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ORI.Z. 1986-03-06T00:36:23.80 10.0 undecidable manual PN 126 0.0101 0.48 0.6
--.SGG.Z. 1986-03-06T00:36:20.50 10.0 undecidable manual PG 315 0.0083 0.68 0.6
--.SOR.Z. 1986-03-06T00:36:15.60 10.0 undecidable manual PG 258 0.0063 -0.14 1.3
--.TR9.Z. 1986-03-06T00:36:13.80 10.0 undecidable manual SG 357 0.0028 0.51 0.3
--.MG9.Z. 1986-03-06T00:36:13.50 10.0 undecidable manual PG 158 0.0057 -0.84 0.6
--.SGO.Z. 1986-03-06T00:36:08.00 10.0 undecidable manual SG 165 0.0015 0.13 0.9
--.TR9.Z. 1986-03-06T00:36:07.00 10.0 undecidable manual PG 357 0.0028 -1.07 0.4
--.SGO.Z. 1986-03-06T00:36:05.00 10.0 positive manual PG 165 0.0015 0.06 3.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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