Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 31-08-2012 and time 08:08:48 (Italy) in region 6 km NE Nemoli (PZ)

A magnitude ML 2.3 earthquake occured in region: 6 km NE Nemoli (PZ), on

  • 31-08-2012 06:08:48 (UTC)
  • 31-08-2012 08:08:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.1130, 15.8430 at 10 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
Nemoli PZ 6 1495 1495
Lagonegro PZ 7 5584 7079
Lauria PZ 7 12919 19998
Rivello PZ 8 2767 22765
Trecchina PZ 11 2316 25081
Castelsaraceno PZ 14 1384 26465
Latronico PZ 14 4556 31021
Moliterno PZ 15 4062 35083
Sarconi PZ 16 1404 36487
Castelluccio Superiore PZ 16 824 37311
Castelluccio Inferiore PZ 16 2131 39442
Maratea PZ 16 5139 44581
Torraca SA 18 1263 45844
Casalbuono SA 18 1194 47038
Sapri SA 19 6770 53808
Grumento Nova PZ 19 1700 55508
Casaletto Spartano SA 20 1420 56928
Spinoso PZ 20 1462 58390

Municipalities with at least 50000 inhabitants

An earthquake occurred to
59 Km S of Potenza (67122 inhabitants)
89 Km SW of Matera (60436 inhabitants)
91 Km SE of Battipaglia (50786 inhabitants)
98 Km NW of Cosenza (67546 inhabitants)
100 Km SW of Altamura (70396 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
Reviewed
Rev100 		ML 2.3 2012-08-31
06:08:48		 40.1107 15.8387 10 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 2095291
Bulletin
Rev1000 		ML 2.3 2012-08-31
06:08:48		 40.1133 15.8433 10 2014-09-19
08:14:18		 Bollettino Sismico Italiano INGV 2928551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-08-31 06:08:48 ± 0.06
Latitude 40.1133 ± 0.0036
Longitude 15.8433 ± 0.0047
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 2928551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 448
Semi-minor axis of confidence ellipse (meter) 223
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 66
Circular confidence region, given by single value of horizontal uncertainty (meter) 450.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 78
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.07105
Epicentral distance of station farthest from the epicenter (degree) 0.66910
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 2095291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2012-08-31 06:18:14

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 2928551
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2014-09-18 12:44:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MIGL.HHZ. 2012-08-31T06:09:11.17 0.3 undecidable manual S 43 74.2701 50 0.26 64
IV.CET2.HHZ. 2012-08-31T06:09:08.77 0.3 undecidable manual S 172 65.5899 50 0.19 66
IV.CMPR.HHZ. 2012-08-31T06:09:05.06 0.1 undecidable manual S 297 51.1155 50 0.34 87
IV.BULG.HHZ. 2012-08-31T06:09:02.12 0.1 undecidable manual S 265 39.7269 50 0.44 87
IV.MIGL.HHZ. 2012-08-31T06:09:01.27 0.1 undecidable manual P 43 74.2701 50 -0.16 87
IV.CET2.HHZ. 2012-08-31T06:09:00.24 0.1 undecidable manual P 172 65.5899 50 0.16 88
IV.SLCN.HHZ. 2012-08-31T06:09:00.43 0.3 undecidable manual S 330 35.4423 50 -0.12 70
IV.T0701.HNZ. 2012-08-31T06:08:58.41 0.6 undecidable manual S 121 27.1506 50 0.09 48
IV.MGR.HHZ. 2012-08-31T06:08:57.39 0.3 undecidable manual S 276 24.753 50 -0.29 69
IV.CMPR.HHZ. 2012-08-31T06:08:57.58 0.1 undecidable manual P 297 51.1155 50 -0.28 88
IV.SALB.HHZ. 2012-08-31T06:08:57.27 0.1 undecidable manual P 121 50.1165 50 -0.44 86
IV.MCEL.HNZ. 2012-08-31T06:08:57.72 0.6 undecidable manual S 351 23.754 50 0.31 46
IV.BULG.HHZ. 2012-08-31T06:08:56.19 0.1 positive manual P 265 39.7269 50 0.09 94
IV.SLCN.HHZ. 2012-08-31T06:08:55.35 0.1 positive manual P 330 35.4423 50 -0.1 94
IV.MTSN.HHZ. 2012-08-31T06:08:55.45 0.1 undecidable manual S 335 18.6702 119 -0.45 90
IV.T0701.HNZ. 2012-08-31T06:08:54.18 0.1 undecidable manual P 121 27.1506 50 0.02 97
MN.CUC.HHZ. 2012-08-31T06:08:54.33 0.1 undecidable manual S 190 13.4754 128 -0.06 99
IV.MMN.HHZ. 2012-08-31T06:08:54.11 0.1 undecidable manual P 153 27.6501 50 -0.14 95
IV.MCEL.HNZ. 2012-08-31T06:08:53.51 0.1 undecidable manual P 351 23.754 50 -0.13 96
IV.SIRI.HHZ. 2012-08-31T06:08:53.41 0.1 undecidable manual S 15 7.881 143 0.39 93
IV.MGR.HHZ. 2012-08-31T06:08:53.64 0.1 positive manual P 276 24.753 50 -0.15 95
IV.MTSN.HHZ. 2012-08-31T06:08:52.79 0.1 positive manual P 335 18.6702 119 0.03 99
IV.SIRI.HHZ. 2012-08-31T06:08:51.36 0.1 undecidable manual P 15 7.881 143 0.26 96
MN.CUC.HHZ. 2012-08-31T06:08:51.89 0.1 undecidable manual P 190 13.4754 128 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ACER.HHE. ML:2.0 0.000167 0.58 AML other m 2012-08-31T06:09:19.23
IV.ACER.HHN. ML:2.2 0.000263 0.52 AML other m 2012-08-31T06:09:20.53
IV.BULG.HHE. ML:2.2 0.0005105 1.32 AML other m 2012-08-31T06:09:02.30
IV.BULG.HHN. ML:2.3 0.0007390000000000001 0.22 AML other m 2012-08-31T06:09:03.39
IV.CET2.HHE. ML:2.3 0.00033299999999999996 0.44 AML other m 2012-08-31T06:09:10.89
IV.CET2.HHN. ML:2.3 0.00034750000000000004 1 AML other m 2012-08-31T06:09:11.65
IV.CMPR.HHE. ML:2.0 0.00022899999999999998 0.34 AML other m 2012-08-31T06:09:08.74
IV.CMPR.HHN. ML:2.1 0.0002945 0.28 AML other m 2012-08-31T06:09:09.81
MN.CUC.HHN. ML:2.3 0.002105 0.44 AML other m 2012-08-31T06:08:54.89
MN.CUC.HHE. ML:2.6 0.00387 0.24 AML other m 2012-08-31T06:08:55.14
IV.MGR.HHN. ML:2.2 0.001049 0.72 AML other m 2012-08-31T06:08:58.39
IV.MGR.HNE. ML:2.2 0.0009450000000000001 0.26 AML other m 2012-08-31T06:08:58.23
IV.MGR.HHE. ML:2.3 0.001073 0.22 AML other m 2012-08-31T06:08:58.24
IV.MGR.HNN. ML:2.3 0.0011200000000000001 0.18 AML other m 2012-08-31T06:08:58.47
IV.MIGL.HHE. ML:2.3 0.00030649999999999997 0.38 AML other m 2012-08-31T06:09:19.55
IV.MIGL.HHN. ML:2.3 0.00029749999999999997 0.64 AML other m 2012-08-31T06:09:20.96
IV.MMN.HHN. ML:2.0 0.000503 0.18 AML other m 2012-08-31T06:09:00.07
IV.MMN.HHE. ML:1.8 0.000328 0.48 AML other m 2012-08-31T06:09:01.74
IV.MTSN.HHN. ML:2.4 0.001795 0.22 AML other m 2012-08-31T06:08:56.18
IV.MTSN.HHE. ML:2.4 0.0019100000000000002 1.36 AML other m 2012-08-31T06:08:57.62
IV.SALB.HHN. ML:1.9 0.000201 0.6 AML other m 2012-08-31T06:09:09.89
IV.SALB.HHE. ML:2.0 0.00026000000000000003 0.18 AML other m 2012-08-31T06:09:08.77
IV.SIRI.HHN. ML:3.0 0.01505 0.18 AML other m 2012-08-31T06:08:54.25
IV.SIRI.HHE. ML:3.1 0.0159 0.22 AML other m 2012-08-31T06:08:54.80
IV.SIRI.HNE. ML:3.0 0.015 0.22 AML other m 2012-08-31T06:08:54.80
IV.SIRI.HNN. ML:3.0 0.01425 0.18 AML other m 2012-08-31T06:08:54.25
IV.SLCN.HHN. ML:2.3 0.0007855000000000001 0.42 AML other m 2012-08-31T06:09:02.80
IV.SLCN.HNN. ML:2.3 0.0007909999999999999 0.4 AML other m 2012-08-31T06:09:02.80
IV.SLCN.HHE. ML:2.5 0.00123 0.3 AML other m 2012-08-31T06:09:02.83
IV.SLCN.HNE. ML:2.4 0.0010815 0.3 AML other m 2012-08-31T06:09:02.83
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
Waveforms Seismic signals in miniseed + resp format Download