Earthquake with magnitude of Md 2.8 on date 23-03-1985 and time 11:01:01 (Italy) in region 3 km SW Altavilla Silentina (SA)

A magnitude Md 2.8 earthquake occured in region: 3 km SW Altavilla Silentina (SA), on

  • 23-03-1985 10:01:01 (UTC)
  • 23-03-1985 11:01:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.51, 15.12 at 7 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
Altavilla Silentina SA 3 7051 7051
Albanella SA 3 6513 13564
Controne SA 7 875 14439
Castelcivita SA 9 1739 16178
Serre SA 10 3995 20173
Capaccio Paestum SA 10 22810 42983
Roccadaspide SA 11 7209 50192
Postiglione SA 11 2151 52343
Trentinara SA 12 1646 53989
Giungano SA 13 1280 55269
Aquara SA 13 1545 56814
Castel San Lorenzo SA 13 2471 59285
Eboli SA 14 40115 99400
Battipaglia SA 16 50786 150186
Sicignano degli Alburni SA 17 3519 153705
Monteforte Cilento SA 17 564 154269
Ottati SA 17 618 154887
Campagna SA 18 16703 171590
Cicerale SA 18 1220 172810
Bellosguardo SA 18 794 173604
Felitto SA 19 1283 174887
Ogliastro Cilento SA 19 2270 177157
Contursi Terme SA 19 3394 180551
Olevano sul Tusciano SA 19 6878 187429
Sant'Angelo a Fasanella SA 20 635 188064
Bellizzi SA 20 13568 201632

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km SE of Battipaglia (50786 inhabitants)
36 Km SE of Salerno (135261 inhabitants)
41 Km SE of Cava de' Tirreni (53659 inhabitants)
53 Km SE of Avellino (54857 inhabitants)
57 Km E of Scafati (50787 inhabitants)
58 Km E of Castellammare di Stabia (66466 inhabitants)
60 Km W of Potenza (67122 inhabitants)
71 Km E of Torre del Greco (86275 inhabitants)
74 Km E of Ercolano (53709 inhabitants)
74 Km E of Portici (55274 inhabitants)
75 Km SE of Benevento (60091 inhabitants)
80 Km SE of Acerra (59573 inhabitants)
82 Km E of Napoli (974074 inhabitants)
83 Km SE of Afragola (65057 inhabitants)
83 Km SE of Casoria (77642 inhabitants)
90 Km SE of Marano di Napoli (59874 inhabitants)
91 Km SE of Giugliano in Campania (122974 inhabitants)
92 Km SE of Caserta (76326 inhabitants)
93 Km SE of Aversa (53047 inhabitants)
95 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 2.8 1985-03-23
10:01:01
40.51 15.12 7 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 3529
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-03-23 10:01:01 ± 0.302
Latitude 40.51 ± 0.02
Longitude 15.12 ± 0.02
Depth (km) 7 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 3529

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) 2962
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 163
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.0013
Epicentral distance of station farthest from the epicenter (degree) 0.00988
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 3529
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:08:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ORI.Z. 1985-03-23T10:01:23.50 10.0 undecidable manual PN 114 0.0099 0.59 0.4
--.BS1.Z. 1985-03-23T10:01:15.50 10.0 undecidable manual SG 319 0.0031 0.58 0.3
--.SOR.Z. 1985-03-23T10:01:13.50 10.0 negative manual PG 277 0.0054 -0.33 2.3
--.TR9.Z. 1985-03-23T10:01:12.30 10.0 undecidable manual PG 8 0.0049 -0.43 1
--.BS1.Z. 1985-03-23T10:01:09.70 10.0 undecidable manual PG 319 0.0031 0.57 0.8
--.SGO.Z. 1985-03-23T10:01:07.50 10.0 undecidable manual SG 70 0.0013 0.04 0.7
--.SGO.Z. 1985-03-23T10:01:04.50 10.0 undecidable manual PG 70 0.0013 -0.33 1.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
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