Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 20-04-2018 and time 05:25:18 (UTC) in region 4 km W Anzi (PZ)

A magnitude ML 2.2 earthquake occured in region: 4 km W Anzi (PZ), on

  • 20-04-2018 05:25:18 (UTC)
  • 20-04-2018 07:25:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.5100, 15.8810 at 22 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
Anzi PZ 4 1696 1696
Calvello PZ 5 1948 3644
Abriola PZ 6 1531 5175
Laurenzana PZ 10 1797 6972
Pignola PZ 11 6962 13934
Trivigno PZ 12 678 14612
Brindisi Montagna PZ 12 908 15520
Castelmezzano PZ 14 800 16320
Pietrapertosa PZ 16 1032 17352
Albano di Lucania PZ 16 1435 18787
Marsicovetere PZ 16 5546 24333
Potenza PZ 16 67122 91455
Marsico Nuovo PZ 16 4098 95553
Sasso di Castalda PZ 17 835 96388
Campomaggiore PZ 18 811 97199
Vaglio Basilicata PZ 18 2047 99246
Tito PZ 19 7332 106578
Viggiano PZ 19 3329 109907
Paterno PZ 19 3368 113275
Corleto Perticara PZ 20 2511 115786

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km SE of Potenza (67122 inhabitants)
63 Km W of Matera (60436 inhabitants)
67 Km SW of Altamura (70396 inhabitants)
77 Km E of Battipaglia (50786 inhabitants)
84 Km S of Cerignola (58396 inhabitants)
87 Km SW of Andria (100440 inhabitants)
96 Km SW of Bitonto (55540 inhabitants)
96 Km SW of Barletta (94814 inhabitants)
96 Km SW of Trani (56217 inhabitants)
97 Km E of Salerno (135261 inhabitants)
97 Km SW of Bisceglie (55422 inhabitants)
98 Km SW of Molfetta (59874 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 		ML 2.2 2018-04-20
05:25:18		 40.5102 15.8808 22 2019-04-24
14:49:35		 Bollettino Sismico Italiano INGV 57402331
Reviewed
Rev100 		ML 2.3 2018-04-20
05:25:18		 40.4945 15.8873 24 2018-04-20
06:38:31		 Sala Sismica INGV-Roma 55857241
Reviewed
Rev100 		ML 2.2 2018-04-20
05:25:18		 40.5058 15.8948 18 2018-04-20
05:41:27		 Sala Sismica INGV-Roma 55855971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-04-20 05:25:18 ± 0.12
Latitude 40.5102 ± 0.0054
Longitude 15.8808 ± 0.0083
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 57402331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 696
Semi-minor axis of confidence ellipse (meter) 143
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 120
Circular confidence region, given by single value of horizontal uncertainty (meter) 700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 40
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.13760
Epicentral distance of station farthest from the epicenter (degree) 1.24826
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 59
Type of magnitude ML
Reference to an origin 57402331
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-01-31 10:42:57

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 53
Type of magnitude ML
Reference to an origin 55857241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-04-20 06:38:31

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 42
Type of magnitude ML
Reference to an origin 55855971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-04-20 05:41:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SGRT.HHZ. 2018-04-20T05:25:41.69 0.6 undecidable manual P 355 138.5613 95 0.12 39
IV.AMUR.HHZ. 2018-04-20T05:25:41.66 0.3 undecidable manual S 54 75.0693 100 0.17 66
IV.MSAG.HHZ. 2018-04-20T05:25:40.99 0.3 undecidable manual P 1 133.3665 95 0.21 58
IV.MRVN.HHZ. 2018-04-20T05:25:39.71 0.6 undecidable manual S 23 66.5778 102 0.45 42
IV.VULT.HHZ. 2018-04-20T05:25:36.38 1.0 undecidable manual S 336 54.1014 105 0.36 22
IV.MGR.HHZ. 2018-04-20T05:25:35.08 0.3 undecidable manual S 214 49.7169 106 0.18 70
IV.CRAC.EHZ. 2018-04-20T05:25:35.08 0.6 undecidable manual S 107 48.9177 107 0.39 45
IV.CMPR.HHZ. 2018-04-20T05:25:35.20 0.3 undecidable manual S 247 53.2023 105 -0.6 62
IV.MIGL.HHZ. 2018-04-20T05:25:34.41 0.3 undecidable manual S 77 48.3183 107 -0.13 71
IV.SALB.HHZ. 2018-04-20T05:25:32.18 0.6 undecidable manual P 151 80.5638 99 -0.52 41
IV.ORI.HHZ. 2018-04-20T05:25:32.14 0.6 undecidable manual P 136 70.1742 101 1.02 34
IV.MRLC.HHZ. 2018-04-20T05:25:32.82 0.6 undecidable manual S 310 42.8238 109 -0.32 46
IV.AMUR.HHZ. 2018-04-20T05:25:31.42 0.1 undecidable manual P 54 75.0693 100 -0.46 84
GE.MATE.HHZ. 2018-04-20T05:25:31.38 0.3 undecidable manual P 77 71.0733 101 0.11 68
IV.SIRI.HHZ. 2018-04-20T05:25:31.40 0.3 undecidable manual S 182 36.4413 113 -0.15 71
IV.MMN.HHE. 2018-04-20T05:25:31.13 0.3 undecidable manual P 172 69.2751 101 0.13 68
IV.MRVN.HHZ. 2018-04-20T05:25:30.40 0.6 undecidable manual P 23 66.5778 102 -0.19 45
IV.ACER.HHZ. 2018-04-20T05:25:29.83 0.3 undecidable manual S 10 31.1466 118 -0.44 68
IV.MCEL.HHZ. 2018-04-20T05:25:29.41 0.3 undecidable manual S 198 21.5673 129 1.26 50
IV.MTSN.HHZ. 2018-04-20T05:25:29.42 0.3 undecidable manual S 202 29.1486 120 -0.4 68
IV.CMPR.HHZ. 2018-04-20T05:25:28.32 0.1 undecidable manual P 247 53.2023 105 -0.27 91
IX.VGG3.HNZ.01 2018-04-20T05:25:28.02 0.6 undecidable manual S 175 19.3695 133 0.31 48
IV.VULT.HHZ. 2018-04-20T05:25:28.92 0.1 undecidable manual P 336 54.1014 105 0.2 91
IV.SLCN.HHZ. 2018-04-20T05:25:28.87 1.0 undecidable manual S 238 24.8529 125 0.03 25
IV.MIGL.HHZ. 2018-04-20T05:25:27.45 0.1 undecidable manual P 77 48.3183 107 -0.41 89
IV.MRLC.HHZ. 2018-04-20T05:25:27.76 0.1 undecidable manual P 310 42.8238 109 0.71 81
IV.MGR.HHZ. 2018-04-20T05:25:27.92 0.1 undecidable manual P 214 49.7169 106 -0.15 94
IV.CRAC.EHZ. 2018-04-20T05:25:27.98 0.3 undecidable manual P 107 48.9177 107 0.04 72
BA.PZUN.HHZ. 2018-04-20T05:25:26.77 0.3 undecidable manual S 338 16.2726 139 -0.36 71
IV.PTRP.HHZ. 2018-04-20T05:25:26.33 0.6 undecidable manual S 85 15.2736 141 -0.62 43
IX.MRN3.HNE. 2018-04-20T05:25:26.46 0.6 undecidable manual S 234 15.873 139 -0.59 43
IV.MCEL.HHZ. 2018-04-20T05:25:25.26 0.1 undecidable manual P 198 21.5673 129 1.09 72
IV.ACER.HHZ. 2018-04-20T05:25:25.50 0.1 undecidable manual P 10 31.1466 118 0.1 97
IV.SIRI.HHZ. 2018-04-20T05:25:25.65 0.1 undecidable manual P 182 36.4413 113 -0.48 89
IV.SLCN.HHZ. 2018-04-20T05:25:24.62 0.1 undecidable manual P 238 24.8529 125 0.05 100
IV.MTSN.HHZ. 2018-04-20T05:25:24.88 0.1 positive manual P 202 29.1486 120 -0.25 95
IX.VGG3.HNZ.01 2018-04-20T05:25:24.53 0.1 undecidable manual P 175 19.3695 133 0.61 88
IX.MRN3.HNE. 2018-04-20T05:25:23.26 0.1 undecidable manual P 234 15.873 139 -0.28 96
BA.PZUN.HHZ. 2018-04-20T05:25:23.90 0.1 undecidable manual P 338 16.2726 139 0.32 96
IV.PTRP.HHZ. 2018-04-20T05:25:23.20 0.1 undecidable manual P 85 15.2736 141 -0.28 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PTRP.HHE. ML:2.4 0.0016179795 0.3008 AML other m 2018-04-20T05:25:27.43
IV.PTRP.HHN. ML:2.4 0.001521588 0.3008 AML other m 2018-04-20T05:25:28.48
BA.PZUN.HHE. ML:2.3 0.00123097035 0.4416 AML other m 2018-04-20T05:25:28.86
BA.PZUN.HNE. ML:2.3 0.0011814518 0.2912 AML other m 2018-04-20T05:25:28.87
IV.MCEL.HNN. ML:2.2 0.000727724 0.24 AML other m 2018-04-20T05:25:29.50
IV.MCEL.HNE. ML:2.3 0.0009575405500000001 0.2208 AML other m 2018-04-20T05:25:29.73
BA.PZUN.HNN. ML:2.4 0.0013113030000000002 0.2784 AML other m 2018-04-20T05:25:29.70
BA.PZUN.HHN. ML:2.3 0.0012967815 0.2784 AML other m 2018-04-20T05:25:29.70
IV.MTSN.HHN. ML:2.2 0.0006489139000000001 0.1408 AML other m 2018-04-20T05:25:30.39
IV.MCEL.HHN. ML:2.2 0.0007494665499999999 0.24 AML other m 2018-04-20T05:25:30.90
IV.MTSN.HHE. ML:2.3 0.0007694911 1.6416 AML other m 2018-04-20T05:25:30.99
IV.ACER.HHE. ML:2.6 0.0017470905 0.8416 AML other m 2018-04-20T05:25:31.15
IV.MCEL.HHE. ML:2.3 0.0009920498 0.2208 AML other m 2018-04-20T05:25:31.13
IV.ACER.HHN. ML:2.7 0.001931686 0.7616 AML other m 2018-04-20T05:25:31.77
IV.ACER.HNE. ML:2.6 0.001657549 0.2176 AML other m 2018-04-20T05:25:31.76
IV.SLCN.HHN. ML:2.4 0.0010633437999999999 0.2816 AML other m 2018-04-20T05:25:31.74
IV.SLCN.HNN. ML:2.3 0.001023102 0.2912 AML other m 2018-04-20T05:25:31.74
IV.ACER.HNN. ML:2.6 0.0017396134999999998 1.44 AML other m 2018-04-20T05:25:32.77
IV.SIRI.HHE. ML:2.5 0.00101752085 0.16 AML other m 2018-04-20T05:25:32.15
IV.SIRI.HNE. ML:2.5 0.0009711265 0.1792 AML other m 2018-04-20T05:25:32.16
IV.SLCN.HHE. ML:2.6 0.0017472005 1.6992 AML other m 2018-04-20T05:25:32.13
IV.SLCN.HNE. ML:2.5 0.0015787499999999999 1.6896 AML other m 2018-04-20T05:25:32.13
IV.SIRI.HHN. ML:2.5 0.0009723156 0.2208 AML other m 2018-04-20T05:25:32.65
IV.SIRI.HNN. ML:2.4 0.000943822 0.2016 AML other m 2018-04-20T05:25:32.76
IV.MIGL.HHN. ML:3.4 0.0066356085 0.1984 AML other m 2018-04-20T05:25:35.72
IV.MRLC.HHN. ML:2.1 0.00038277784999999996 0.24 AML other m 2018-04-20T05:25:35.81
IV.MIGL.HHE. ML:3.0 0.0027752974999999997 0.1792 AML other m 2018-04-20T05:25:35.72
IV.MRLC.HNN. ML:1.8 0.0001908399 0.2208 AML other m 2018-04-20T05:25:35.81
IV.MGR.HHE. ML:2.0 0.00021964144999999998 0.2592 AML other m 2018-04-20T05:25:36.33
IV.MRLC.HHE. ML:2.2 0.00039382914999999994 0.2208 AML other m 2018-04-20T05:25:36.44
IV.MRLC.HNE. ML:1.8 0.00016611399999999998 0.24 AML other m 2018-04-20T05:25:36.45
IV.CRAC.EHE. ML:2.5 0.0007111199500000001 0.1824 AML other m 2018-04-20T05:25:36.64
IV.CRAC.EHN. ML:2.4 0.0005944313999999999 0.1984 AML other m 2018-04-20T05:25:37.97
IV.VULT.HHN. ML:2.2 0.000355663 0.1184 AML other m 2018-04-20T05:25:38.20
IV.CMPR.HHN. ML:1.8 0.00013827729999999998 0.32 AML other m 2018-04-20T05:25:38.65
IV.MGR.HHN. ML:1.9 0.00017616805000000003 0.2592 AML other m 2018-04-20T05:25:38.93
IV.VULT.HNE. ML:2.1 0.00028067894999999997 0.1376 AML other m 2018-04-20T05:25:40.12
IV.VULT.HHE. ML:2.1 0.00030071525 0.1184 AML other m 2018-04-20T05:25:40.12
IV.CMPR.HHE. ML:1.8 0.00014484095 0.32 AML other m 2018-04-20T05:25:40.41
GE.MATE.HHN. ML:2.5 0.00048773425000000006 0.2816 AML other m 2018-04-20T05:25:41.35
GE.MATE.HHE. ML:2.2 0.00027257785 0.0992 AML other m 2018-04-20T05:25:41.50
MN.CUC.HNE. ML:1.8 0.0001341624 0.0608 AML other m 2018-04-20T05:25:41.81
IV.MRVN.HHE. ML:1.9 0.0001467987 1.8208 AML other m 2018-04-20T05:25:41.93
IV.MRVN.HHN. ML:1.9 0.0001301911 0.2784 AML other m 2018-04-20T05:25:42.29
MN.CUC.HNN. ML:1.6 0.000078000075 0.4224 AML other m 2018-04-20T05:25:42.56
MN.CUC.HHN. ML:1.6 0.00008552161 0.24 AML other m 2018-04-20T05:25:43.20
IV.VULT.HNN. ML:2.2 0.000343321 0.5408 AML other m 2018-04-20T05:25:43.80
IV.AMUR.HHE. ML:2.2 0.00024574430000000005 1.6192 AML other m 2018-04-20T05:25:43.13
MN.CUC.HHE. ML:1.8 0.00013889245 0.4416 AML other m 2018-04-20T05:25:44.29
IV.AMUR.HHN. ML:2.2 0.00022358224999999998 0.32 AML other m 2018-04-20T05:25:44.65
IV.SGTA.HNE. ML:2.1 0.0001500126 0.1088 AML other m 2018-04-20T05:25:47.53
IV.SGTA.HHE. ML:1.8 0.000089601105 0.4384 AML other m 2018-04-20T05:25:47.93
IV.SGTA.HHN. ML:1.7 0.000068968425 0.8 AML other m 2018-04-20T05:25:50.81
IV.MSAG.HNE. ML:2.3 0.00012632399999999998 0.8192 AML other m 2018-04-20T05:26:01.70
IV.MSAG.HNN. ML:2.7 0.00031016055 1.92 AML other m 2018-04-20T05:26:01.00
IV.SGRT.HHE. ML:2.3 0.00011251335 0.4224 AML other m 2018-04-20T05:26:02.79
IV.SGRT.HHN. ML:2.3 0.00011146642 0.24 AML other m 2018-04-20T05:26:03.49
IV.MSAG.HHE. ML:2.0 0.00005341374 0.2208 AML other m 2018-04-20T05:26:03.57
IV.MSAG.HHN. ML:2.2 0.00010915664999999999 0.4192 AML other m 2018-04-20T05:26:06.17
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