Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 18-05-2016 and time 23:30:40 (Italy) in region 2 km W San Chirico Nuovo (PZ)

A magnitude ML 1.7 earthquake occured in region: 2 km W San Chirico Nuovo (PZ), on

  • 18-05-2016 21:30:40 (UTC)
  • 18-05-2016 23:30:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.6760, 16.0620 at 23 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
San Chirico Nuovo PZ 2 1368 1368
Tolve PZ 5 3251 4619
Tricarico MT 9 5388 10007
Albano di Lucania PZ 10 1435 11442
Oppido Lucano PZ 12 3813 15255
Vaglio Basilicata PZ 12 2047 17302
Campomaggiore PZ 12 811 18113
Trivigno PZ 12 678 18791
Brindisi Montagna PZ 13 908 19699
Cancellara PZ 13 1309 21008
Calciano MT 15 777 21785
Castelmezzano PZ 16 800 22585
Acerenza PZ 17 2402 24987
Pietragalla PZ 17 4160 29147
Irsina MT 17 4960 34107
Pietrapertosa PZ 18 1032 35139
Oliveto Lucano MT 19 450 35589
Grassano MT 19 5189 40778
Genzano di Lucania PZ 20 5750 46528
Garaguso MT 20 1073 47601

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km E of Potenza (67122 inhabitants)
45 Km W of Altamura (70396 inhabitants)
45 Km W of Matera (60436 inhabitants)
65 Km SW of Andria (100440 inhabitants)
67 Km S of Cerignola (58396 inhabitants)
72 Km SW of Bitonto (55540 inhabitants)
73 Km SW of Trani (56217 inhabitants)
73 Km SW of Bisceglie (55422 inhabitants)
74 Km S of Barletta (94814 inhabitants)
74 Km SW of Molfetta (59874 inhabitants)
84 Km SW of Bari (326344 inhabitants)
91 Km E of Battipaglia (50786 inhabitants)
98 Km SE of Foggia (151991 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 1.7 2016-05-18
21:30:40		 40.6757 16.0618 23 2016-11-08
11:48:49		 Bollettino Sismico Italiano INGV 30389611
Reviewed
Rev100 		ML 1.6 2016-05-18
21:30:41		 40.6678 16.081 11 2016-05-18
21:37:30		 Sala Sismica INGV-Roma 25179881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-05-18 21:30:40 ± 0.17
Latitude 40.6757 ± 0.0081
Longitude 16.0618 ± 0.0095
Depth (km) 23 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 30389611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 722
Semi-minor axis of confidence ellipse (meter) 712
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 138
Circular confidence region, given by single value of horizontal uncertainty (meter) 720.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.14299
Epicentral distance of station farthest from the epicenter (degree) 0.76712
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 30389611
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2016-10-20 08:13:05

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 25179881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-05-18 21:37:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GE.MATE.HHZ. 2016-05-18T21:30:58.20 0.6 undecidable manual S 93 54.1014 106 0.18 47
IV.AMUR.HHZ. 2016-05-18T21:30:57.93 0.6 undecidable manual S 60 52.3032 107 0.38 45
IV.MTSN.HHZ. 2016-05-18T21:30:57.74 0.6 undecidable manual S 210 52.4031 107 0.16 47
IV.CRAC.EHZ. 2016-05-18T21:30:56.99 0.3 undecidable manual S 136 45.3213 110 1.21 48
IV.NOCI.HHZ. 2016-05-18T21:30:56.14 0.6 undecidable manual P 81 85.1481 99 0.78 37
IV.SLCN.HHZ. 2016-05-18T21:30:56.71 0.6 undecidable manual S 229 48.1185 108 0.23 46
IV.MCEL.HHZ. 2016-05-18T21:30:55.98 0.3 undecidable manual S 209 44.622 110 0.36 68
IV.MGR.HHZ. 2016-05-18T21:30:53.28 0.3 undecidable manual P 216 73.5708 101 -0.31 65
IV.PALZ.HHZ. 2016-05-18T21:30:52.62 0.3 undecidable manual S 344 30.9468 120 0.32 71
IV.LTRZ.EHZ. 2016-05-18T21:30:52.69 0.3 undecidable manual P 97 64.2912 103 0.5 64
IV.MIGL.HHZ. 2016-05-18T21:30:52.42 0.6 undecidable manual S 104 32.8449 118 -0.32 47
IV.SCHR.EHZ. 2016-05-18T21:30:50.29 0.1 undecidable manual P 179 52.9026 106 -0.21 92
IV.AMUR.HHZ. 2016-05-18T21:30:50.00 0.3 undecidable manual P 60 52.3032 107 -0.41 66
IV.MTSN.HHZ. 2016-05-18T21:30:50.16 0.1 undecidable manual P 210 52.4031 107 -0.27 91
IV.SIRI.HHZ. 2016-05-18T21:30:50.73 0.3 undecidable manual P 197 57.1983 105 -0.41 66
GE.MATE.HHZ. 2016-05-18T21:30:50.29 0.3 undecidable manual P 93 54.1014 106 -0.4 66
IV.SLCN.HHZ. 2016-05-18T21:30:49.93 0.1 undecidable manual P 229 48.1185 108 0.14 94
IV.MRVN.HHZ. 2016-05-18T21:30:49.25 0.3 undecidable manual P 15 44.2224 110 0.02 73
IV.MCEL.HHZ. 2016-05-18T21:30:49.10 0.1 undecidable manual P 209 44.622 110 -0.19 94
IV.CRAC.EHZ. 2016-05-18T21:30:49.37 0.1 undecidable manual P 136 45.3213 110 -0.02 97
IV.ACER.HHZ. 2016-05-18T21:30:48.91 0.6 undecidable manual S 321 15.873 141 -0.28 48
IV.MIGL.HHZ. 2016-05-18T21:30:47.21 0.1 undecidable manual P 104 32.8449 118 -0.42 91
IV.PALZ.HHZ. 2016-05-18T21:30:47.30 0.1 undecidable manual P 344 30.9468 120 -0.08 98
BA.PZUN.HHZ. 2016-05-18T21:30:46.68 0.3 undecidable manual P 261 21.6672 131 0.47 69
IV.ACER.HHZ. 2016-05-18T21:30:45.47 0.1 positive manual P 321 15.873 141 -0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ACER.HNN. ML:2.1 0.0007965 0.48 AML other m 2016-05-18T21:30:49.27
IV.ACER.HHN. ML:2.1 0.000778 0.48 AML other m 2016-05-18T21:30:49.27
IV.ACER.HNE. ML:2.1 0.0007255 0.3 AML other m 2016-05-18T21:30:49.30
IV.ACER.HHE. ML:2.1 0.0007745 0.3 AML other m 2016-05-18T21:30:49.30
IV.AMUR.HHE. ML:1.4 0.0000598 0.86 AML other m 2016-05-18T21:30:59.04
IV.AMUR.HHN. ML:1.6 0.00008219999999999999 0.54 AML other m 2016-05-18T21:30:59.23
IV.CRAC.EHE. ML:1.8 0.00016350000000000002 1.34 AML other m 2016-05-18T21:30:57.20
IV.CRAC.EHN. ML:1.7 0.00011879999999999999 1.32 AML other m 2016-05-18T21:30:58.58
IV.MCEL.HHE. ML:1.6 0.00011449999999999999 1.48 AML other m 2016-05-18T21:30:57.93
IV.MCEL.HHN. ML:1.8 0.000178 0.58 AML other m 2016-05-18T21:30:56.96
IV.MGR.HHN. ML:1.3 0.00002885 1.54 AML other m 2016-05-18T21:31:08.31
IV.MGR.HHE. ML:1.2 0.000026299999999999996 1.34 AML other m 2016-05-18T21:31:10.35
IV.MIGL.HHE. ML:1.8 0.0002465 0.24 AML other m 2016-05-18T21:30:52.42
IV.MIGL.HHN. ML:2.2 0.0005325 0.7 AML other m 2016-05-18T21:30:52.48
IV.MTSN.HHN. ML:1.6 0.00008305 0.18 AML other m 2016-05-18T21:30:58.74
IV.MTSN.HHE. ML:1.6 0.00008685000000000001 1.48 AML other m 2016-05-18T21:30:59.35
IV.PALZ.HHN. ML:1.2 0.0000664 0.7 AML other m 2016-05-18T21:31:05.12
IV.PALZ.HHE. ML:1.4 0.00009965 1.58 AML other m 2016-05-18T21:31:18.04
BA.PZUN.HHE. ML:1.2 0.0000802 1.34 AML other m 2016-05-18T21:30:54.53
BA.PZUN.HHN. ML:1.4 0.0001105 0.46 AML other m 2016-05-18T21:31:41.72
IV.SCHR.EHE. ML:1.6 0.0000892 0.6 AML other m 2016-05-18T21:30:58.24
IV.SCHR.EHN. ML:1.4 0.00005915 1.14 AML other m 2016-05-18T21:30:59.82
IV.SIRI.HHE. ML:1.8 0.00011754999999999998 0.92 AML other m 2016-05-18T21:30:59.73
IV.SIRI.HHN. ML:2.0 0.00021349999999999999 0.2 AML other m 2016-05-18T21:30:59.92
IV.SLCN.HHE. ML:1.8 0.00014850000000000003 0.24 AML other m 2016-05-18T21:31:02.32
IV.SLCN.HHN. ML:1.6 0.00009975 0.42 AML other m 2016-05-18T21:30:58.61
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