Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 04-10-2009 and time 13:28:32 (UTC) in region 1 km W Aquara (SA)

A magnitude ML 2.0 earthquake occured in region: 1 km W Aquara (SA), on

  • 04-10-2009 13:28:32 (UTC)
  • 04-10-2009 15:28:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.4450, 15.2450 at 16 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Aquara SA 1 1545 1545
Castel San Lorenzo SA 3 2471 4016
Roccadaspide SA 5 7209 11225
Castelcivita SA 6 1739 12964
Bellosguardo SA 6 794 13758
Ottati SA 6 618 14376
Controne SA 8 875 15251
Felitto SA 8 1283 16534
Sant'Angelo a Fasanella SA 9 635 17169
Roscigno SA 10 817 17986
Monteforte Cilento SA 10 564 18550
Magliano Vetere SA 11 695 19245
Corleto Monforte SA 12 592 19837
Albanella SA 12 6513 26350
Trentinara SA 13 1646 27996
Postiglione SA 13 2151 30147
Giungano SA 13 1280 31427
Altavilla Silentina SA 13 7051 38478
Sacco SA 13 492 38970
Sicignano degli Alburni SA 14 3519 42489
Capaccio Paestum SA 14 22810 65299
Laurino SA 14 1548 66847
Petina SA 14 1159 68006
Stio SA 15 872 68878
Cicerale SA 15 1220 70098
Valle dell'Angelo SA 15 248 70346
Piaggine SA 16 1311 71657
Serre SA 16 3995 75652
Campora SA 16 439 76091
Orria SA 17 1089 77180
Gioi SA 17 1278 78458
Perito SA 18 931 79389
San Rufo SA 18 1754 81143
Prignano Cilento SA 20 1018 82161
Ogliastro Cilento SA 20 2270 84431
Auletta SA 20 2336 86767

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SE of Battipaglia (50786 inhabitants)
49 Km SE of Salerno (135261 inhabitants)
52 Km W of Potenza (67122 inhabitants)
54 Km SE of Cava de' Tirreni (53659 inhabitants)
65 Km SE of Avellino (54857 inhabitants)
69 Km SE of Scafati (50787 inhabitants)
70 Km E of Castellammare di Stabia (66466 inhabitants)
83 Km E of Torre del Greco (86275 inhabitants)
86 Km SE of Benevento (60091 inhabitants)
86 Km E of Ercolano (53709 inhabitants)
86 Km SE of Portici (55274 inhabitants)
92 Km SE of Acerra (59573 inhabitants)
95 Km E of Napoli (974074 inhabitants)
95 Km SE of Afragola (65057 inhabitants)
95 Km SE of Casoria (77642 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 2.3
ML 2.0 		2009-10-04
13:28:32		 40.445 15.245 16 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 972689
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-10-04 13:28:32 ± 0.21
Latitude 40.4450 ± 0.0054
Longitude 15.2450 ± 0.0130
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 972689

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 875
Semi-minor axis of confidence ellipse (meter) 714
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 79
Circular confidence region, given by single value of horizontal uncertainty (meter) 1253.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 186
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.63042
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 972689
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:35:49

Md:2.3

Field Value
Value 2.3
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 972689
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:35:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.CUC.HHN. 2009-10-04T13:28:53.44 0.3 undecidable manual Sg 136 69.5748 0.252 65
IV.ACER.HHN. 2009-10-04T13:28:53.96 0.3 undecidable manual Sg 57 69.9744 0.677 56
IV.SIRI.HHN. 2009-10-04T13:28:50.19 0.3 undecidable manual Sg 119 60.1953 -0.507 63
IV.MCEL.HHN. 2009-10-04T13:28:48.14 0.3 undecidable manual Sg 106 48.9177 0.433 64
IV.MTSN.HHZ. 2009-10-04T13:28:47.87 0.6 undecidable manual Sg 115 47.2194 0.62 40
IV.SCHR.EHE. 2009-10-04T13:28:47.93 10.0 undecidable manual Sg 0 0 0
BA.PZUN.HHN. 2009-10-04T13:28:47.63 10.0 undecidable manual Pg 0 0 0
IV.BULG.HHZ. 2009-10-04T13:28:46.59 0.3 undecidable manual Sg 164 42.2244 0.658 62
IV.MGR.HHZ. 2009-10-04T13:28:45.53 0.3 undecidable manual Sg 142 42.9237 -0.6 62
IV.MRLC.HHZ. 2009-10-04T13:28:45.57 0.3 undecidable manual Sg 31 40.2264 0.163 69
IV.MCRV.HHZ. 2009-10-04T13:28:44.74 0.3 undecidable manual Sg 350 38.0286 -0.09 70
MN.CUC.HHN. 2009-10-04T13:28:44.08 0.3 undecidable manual Pg 136 69.5748 -0.199 65
IV.ACER.HHN. 2009-10-04T13:28:44.36 0.3 undecidable manual Pg 57 69.9744 0.028 68
IV.SCHR.EHE. 2009-10-04T13:28:42.63 10.0 undecidable manual Pg 0 0 0
IV.SIRI.HHN. 2009-10-04T13:28:42.27 0.3 undecidable manual Pg 119 60.1953 -0.569 61
IV.BULG.HHZ. 2009-10-04T13:28:40.35 0.3 undecidable manual Pg 164 42.2244 0.265 69
IV.MTSN.HHZ. 2009-10-04T13:28:40.58 0.3 undecidable manual Pg 115 47.2194 -0.271 67
IV.MCEL.HHN. 2009-10-04T13:28:40.68 0.3 undecidable manual Pg 106 48.9177 -0.432 65
IV.MCRV.HHZ. 2009-10-04T13:28:39.49 0.3 undecidable manual Pg 350 38.0286 0.039 72
IV.MGR.HHZ. 2009-10-04T13:28:39.84 0.1 undecidable manual Pg 142 42.9237 -0.362 88
IV.CMPR.HHZ. 2009-10-04T13:28:39.31 0.3 undecidable manual Sg 161 14.874 0.211 72
IV.MRLC.HHZ. 2009-10-04T13:28:39.94 0.3 undecidable manual Pg 31 40.2264 0.157 70
IV.SGO.SHZ. 2009-10-04T13:28:38.27 0.3 undecidable manual Sg 22 13.875 -0.61 65
IV.CDRU.HHZ. 2009-10-04T13:28:37.57 0.3 undecidable manual Sg 46 7.0929 -0.154 74
IV.CMPR.HHZ. 2009-10-04T13:28:36.47 0.1 undecidable manual Pg 161 14.874 0.328 94
IV.SGO.SHZ. 2009-10-04T13:28:36.15 0.1 undecidable manual Pg 22 13.875 0.133 98
IV.CDRU.HHZ. 2009-10-04T13:28:35.45 0.1 undecidable manual Pg 46 7.0929 0.101 100
IV.PTQR.SHZ. 2009-10-04T13:28:30.18 10.0 undecidable manual Pg 0 0 0
IV.CRAC.EHE. 2009-10-04T13:28:19.22 10.0 undecidable manual Pg 0 0 0
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