Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 23-09-2021 and time 00:07:38 (UTC) in region 2 km SE Poggiorsini (BA)

A magnitude ML 2.0 earthquake occured in region: 2 km SE Poggiorsini (BA), on

  • 23-09-2021 00:07:38 (UTC)
  • 23-09-2021 02:07:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.9040, 16.2650 at 9 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
Poggiorsini BA 2 1450 1450
Gravina in Puglia BA 16 43872 45322
Spinazzola BT 16 6621 51943
Irsina MT 18 4960 56903

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km W of Altamura (70396 inhabitants)
36 Km S of Andria (100440 inhabitants)
38 Km NW of Matera (60436 inhabitants)
43 Km SW of Bisceglie (55422 inhabitants)
43 Km SW of Bitonto (55540 inhabitants)
43 Km S of Trani (56217 inhabitants)
44 Km SW of Molfetta (59874 inhabitants)
46 Km S of Barletta (94814 inhabitants)
49 Km NE of Potenza (67122 inhabitants)
50 Km SE of Cerignola (58396 inhabitants)
56 Km W of Bari (326344 inhabitants)
86 Km SE of Manfredonia (57279 inhabitants)
87 Km SE of Foggia (151991 inhabitants)
95 Km NW of Taranto (201100 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 2.0 2021-09-23
00:07:38		 40.9035 16.2647 9 2022-03-30
13:04:08		 Bollettino Sismico Italiano INGV 95994011
Reviewed
Rev100 		ML 2.0 2021-09-23
00:07:38		 40.8978 16.2602 10 2021-09-23
00:23:19		 Sala Sismica INGV-Roma 95762351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-23 00:07:38 ± 0.09
Latitude 40.9035 ± 0.0036
Longitude 16.2647 ± 0.0048
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95994011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 450
Semi-minor axis of confidence ellipse (meter) 111
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 231
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) 81
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 54
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.16548
Epicentral distance of station farthest from the epicenter (degree) 1.02792
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 32
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 54
Type of magnitude ML
Reference to an origin 95994011
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-18 15:07:35

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 42
Type of magnitude ML
Reference to an origin 95762351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-23 00:23:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OT.OT04.EHE. 2021-09-23T00:08:09.84 0.6 undecidable manual S 328 107.0151 50 0.23 42
IV.SGRT.HHZ. 2021-09-23T00:08:08.79 0.6 undecidable manual S 335 103.9182 50 0 44
OT.OT06.EHZ. 2021-09-23T00:08:08.68 0.6 undecidable manual S 327 103.2189 50 0.08 43
OT.OT05.EHE. 2021-09-23T00:08:07.72 0.6 undecidable manual S 327 100.3218 50 -0.13 43
IV.MSAG.HHZ. 2021-09-23T00:08:06.69 0.6 undecidable manual S 342 94.4388 50 0.42 41
OT.TAR1.HHZ. 2021-09-23T00:08:06.84 0.3 undecidable manual S 116 95.4378 50 0.31 63
OT.OT12.EHZ. 2021-09-23T00:08:03.86 0.3 undecidable manual S 340 86.0472 50 -0.18 66
IV.MTSN.HHZ. 2021-09-23T00:08:03.20 0.6 undecidable manual S 212 82.8504 50 0.03 46
IV.SCHR.EHZ. 2021-09-23T00:08:02.88 0.3 undecidable manual S 192 79.7646 50 0.54 61
IV.MCEL.HHZ. 2021-09-23T00:08:01.21 0.6 undecidable manual S 211 75.0693 50 0.11 45
IV.NOCI.HHZ. 2021-09-23T00:07:59.66 0.3 undecidable manual S 100 68.2761 50 0.37 65
OT.CGL1.HHZ. 2021-09-23T00:07:57.25 0.6 undecidable manual P 105 109.0131 50 0.66 37
OT.OT14.EHZ. 2021-09-23T00:07:57.57 0.1 undecidable manual P 345 114.0969 50 0.19 83
IV.APRC.HHZ. 2021-09-23T00:07:57.03 0.1 undecidable manual P 328 112.1988 50 -0.05 86
IV.CRAC.EHZ. 2021-09-23T00:07:57.98 0.6 undecidable manual S 166 59.6958 50 1 35
OT.OT04.EHE. 2021-09-23T00:07:56.08 0.1 undecidable manual P 328 107.0151 50 -0.2 84
OT.OT15.EHZ. 2021-09-23T00:07:56.03 0.6 undecidable manual S 66 56.2992 50 -0.06 48
IV.SGRT.HHZ. 2021-09-23T00:07:55.73 0.3 undecidable manual P 335 103.9182 50 -0.08 65
OT.OT03.EHE. 2021-09-23T00:07:55.54 0.3 undecidable manual P 330 103.3188 50 -0.18 64
OT.OT06.EHZ. 2021-09-23T00:07:55.60 0.3 undecidable manual P 327 103.2189 50 -0.1 65
IX.PGN3.HHZ.02 2021-09-23T00:07:55.32 0.6 undecidable manual S 227 53.8017 50 -0.1 47
OT.TAR1.HHZ. 2021-09-23T00:07:54.48 0.3 undecidable manual P 116 95.4378 50 -0.03 67
IV.PTRP.HHZ. 2021-09-23T00:07:54.43 0.6 undecidable manual S 202 45.7209 50 1.17 33
OT.OT05.EHE. 2021-09-23T00:07:54.86 0.1 undecidable manual P 327 100.3218 50 -0.4 81
IV.MSAG.HHZ. 2021-09-23T00:07:54.15 0.3 undecidable manual P 342 94.4388 50 -0.2 65
IV.CAPA.HHZ. 2021-09-23T00:07:53.04 0.6 undecidable manual S 307 46.9197 50 -0.55 43
OT.OT07.EHE. 2021-09-23T00:07:53.87 0.1 undecidable manual P 330 91.7415 50 -0.06 89
GE.MATE.HHZ. 2021-09-23T00:07:52.73 0.3 undecidable manual S 127 46.5201 50 -0.74 60
IV.SGTA.HNZ. 2021-09-23T00:07:52.16 0.6 undecidable manual P 289 79.5648 50 0.1 45
OT.OT12.EHZ. 2021-09-23T00:07:52.97 0.1 undecidable manual P 340 86.0472 50 -0.09 89
IV.SCHR.EHZ. 2021-09-23T00:07:51.64 0.3 undecidable manual P 192 79.7646 50 -0.44 63
IV.MTSN.HHZ. 2021-09-23T00:07:51.77 0.3 undecidable manual P 212 82.8504 50 -0.79 55
IX.CLT3.EHN.02 2021-09-23T00:07:51.54 0.3 undecidable manual P 270 72.1722 50 0.63 60
IV.NOCI.HHZ. 2021-09-23T00:07:50.09 0.3 undecidable manual P 100 68.2761 50 -0.23 67
IV.MIGL.HHZ. 2021-09-23T00:07:50.96 0.6 undecidable manual S 156 36.3414 50 0.2 48
IV.MCEL.HHZ. 2021-09-23T00:07:50.70 0.1 undecidable manual P 211 75.0693 50 -0.67 78
IV.MRLC.HHZ. 2021-09-23T00:07:50.13 0.3 undecidable manual P 256 67.0773 50 -0.01 71
IV.VULT.HHZ. 2021-09-23T00:07:49.22 0.3 undecidable manual P 276 54.6009 50 1 53
OT.OT15.EHZ. 2021-09-23T00:07:49.65 0.3 undecidable manual P 66 56.2992 50 1.18 48
IX.RDM3.HHZ.02 2021-09-23T00:07:49.95 0.3 undecidable manual P 267 61.1943 50 0.73 59
IV.AMUR.HHZ. 2021-09-23T00:07:48.34 0.3 undecidable manual S 89 28.4493 107 -0.06 75
IV.CRAC.EHZ. 2021-09-23T00:07:48.77 0.3 undecidable manual P 166 59.6958 50 -0.22 69
IV.ACER.HHZ. 2021-09-23T00:07:48.79 0.3 undecidable manual S 244 29.9478 106 -0.11 74
IX.PGN3.HHZ.02 2021-09-23T00:07:48.04 0.3 undecidable manual P 227 53.8017 50 -0.05 72
IV.PTRP.HHZ. 2021-09-23T00:07:47.00 0.1 undecidable manual P 202 45.7209 50 0.16 95
IV.PALZ.HHN. 2021-09-23T00:07:47.78 0.6 undecidable manual S 280 25.9518 109 0.22 49
IV.CAPA.HHZ. 2021-09-23T00:07:46.33 0.1 undecidable manual P 307 46.9197 50 -0.7 82
GE.MATE.HHZ. 2021-09-23T00:07:46.33 0.3 undecidable manual P 127 46.5201 50 -0.63 63
IV.MIGL.HHZ. 2021-09-23T00:07:45.12 0.1 positive manual P 156 36.3414 50 -0.28 94
IV.MRVN.HHZ. 2021-09-23T00:07:45.53 0.3 undecidable manual S 342 18.3705 115 0.4 71
IV.ACER.HHZ. 2021-09-23T00:07:44.21 0.3 undecidable manual P 244 29.9478 106 -0.11 74
IV.PALZ.HHN. 2021-09-23T00:07:43.46 0.1 undecidable manual P 280 25.9518 109 -0.09 100
IV.AMUR.HHZ. 2021-09-23T00:07:43.97 0.1 undecidable manual P 89 28.4493 107 -0.06 100
IV.MRVN.HHZ. 2021-09-23T00:07:42.46 0.1 positive manual P 342 18.3705 115 0.31 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRVN.HHN. ML:1.6 0.00030487995000000003 0.1 AML other m 2021-09-23T00:07:45.64
IV.MRVN.HHE. ML:1.4 0.00022660315000000002 0.38 AML other m 2021-09-23T00:07:45.69
IV.AMUR.HHN. ML:1.9 0.0004295 0.18 AML other m 2021-09-23T00:07:48.60
IV.AMUR.HNN. ML:1.9 0.0004005 0.18 AML other m 2021-09-23T00:07:48.60
IV.AMUR.HHE. ML:1.7 0.00026481065 0.14 AML other m 2021-09-23T00:07:48.94
IV.ACER.HHN. ML:2.2 0.0008900000000000002 0.18 AML other m 2021-09-23T00:07:49.09
IV.ACER.HNN. ML:2.2 0.000841 0.2 AML other m 2021-09-23T00:07:49.10
IV.ACER.HNE. ML:2.2 0.0008774999999999999 0.32 AML other m 2021-09-23T00:07:49.12
IV.ACER.HHE. ML:2.0 0.000589 0.18 AML other m 2021-09-23T00:07:49.24
IV.AMUR.HNE. ML:1.8 0.00030760145 0.16 AML other m 2021-09-23T00:07:49.89
IV.MIGL.HHE. ML:2.3 0.0007976708500000001 0.16 AML other m 2021-09-23T00:07:50.23
IV.MIGL.HHN. ML:2.4 0.0009937098 0.22 AML other m 2021-09-23T00:07:53.40
GE.MATE.HHN. ML:1.8 0.00017449999999999999 0.08 AML other m 2021-09-23T00:07:53.83
GE.MATE.HHE. ML:1.9 0.00023951905 0.24 AML other m 2021-09-23T00:07:54.92
IV.PTRP.HHN. ML:2.1 0.000373 1.66 AML other m 2021-09-23T00:07:55.07
IV.PTRP.HHE. ML:1.7 0.0001545 1.58 AML other m 2021-09-23T00:07:56.96
IX.PGN3.HHE.02 ML:1.3 0.000048257204999999996 0.112 AML other m 2021-09-23T00:07:56.93
IX.PGN3.HHN.02 ML:1.4 0.00006199596 0.176 AML other m 2021-09-23T00:07:57.79
IV.CRAC.EHN. ML:2.4 0.0005218297 0.24 AML other m 2021-09-23T00:07:58.68
IV.VULT.HHN. ML:1.9 0.00018099999999999998 0.42 AML other m 2021-09-23T00:07:58.48
IV.VULT.HNE. ML:1.8 0.00016558275 0.15 AML other m 2021-09-23T00:07:58.80
IV.VULT.HHE. ML:1.9 0.00019800000000000002 0.14 AML other m 2021-09-23T00:07:58.80
IV.CRAC.EHE. ML:2.5 0.00060519415 0.24 AML other m 2021-09-23T00:07:59.29
IV.VULT.HNN. ML:1.9 0.00020380318 0.19 AML other m 2021-09-23T00:07:59.48
IV.MRLC.HNE. ML:1.4 0.00004665888 0.8 AML other m 2021-09-23T00:08:00.36
IV.NOCI.HNE. ML:2.2 0.00028849999999999997 0.1 AML other m 2021-09-23T00:08:01.03
IV.NOCI.HHN. ML:2.4 0.00040100000000000004 0.2 AML other m 2021-09-23T00:08:01.08
IV.NOCI.HNN. ML:2.3 0.000356 0.2 AML other m 2021-09-23T00:08:01.08
IV.MRLC.HHN. ML:1.5 0.00006094673 0.22 AML other m 2021-09-23T00:08:01.44
IV.MRLC.HNN. ML:1.2 0.000031789805000000006 0.2 AML other m 2021-09-23T00:08:01.44
IV.NOCI.HHE. ML:1.9 0.00012845207 0.18 AML other m 2021-09-23T00:08:01.48
IV.MCEL.HNE. ML:2.1 0.0002055 1.5 AML other m 2021-09-23T00:08:01.14
IV.MCEL.HHE. ML:1.6 0.00006517433999999999 0.4 AML other m 2021-09-23T00:08:02.08
IV.MRLC.HHE. ML:1.3 0.0000366045 0.14 AML other m 2021-09-23T00:08:02.64
IV.MCEL.HHN. ML:1.7 0.000069216735 0.2 AML other m 2021-09-23T00:08:04.09
IV.MCEL.HNN. ML:2.2 0.000221 1.52 AML other m 2021-09-23T00:08:04.20
IV.SCHR.EHN. ML:1.5 0.0000377444 0.22 AML other m 2021-09-23T00:08:04.26
OT.OT12.EHN. ML:2.2 0.0001875 0.28 AML other m 2021-09-23T00:08:04.99
OT.OT12.EHE. ML:1.9 0.00010728438499999999 0.34 AML other m 2021-09-23T00:08:05.10
IV.SCHR.EHE. ML:1.3 0.00003004934 0.18 AML other m 2021-09-23T00:08:05.27
IV.MTSN.HHE. ML:1.6 0.000056373035 0.28 AML other m 2021-09-23T00:08:05.50
IV.MTSN.HNN. ML:1.7 0.00006225173 0.33 AML other m 2021-09-23T00:08:06.81
IV.MTSN.HHN. ML:1.6 0.00005720745000000001 0.32 AML other m 2021-09-23T00:08:06.81
IV.MSAG.HHE. ML:1.7 0.00006190975999999999 0.32 AML other m 2021-09-23T00:08:07.93
IV.MSAG.HNE. ML:2.1 0.0001472267 0.3 AML other m 2021-09-23T00:08:07.94
OT.TAR1.HHN. ML:2.2 0.00015915065 0.2 AML other m 2021-09-23T00:08:08.15
IV.MSAG.HNN. ML:2.5 0.0003075225 0.22 AML other m 2021-09-23T00:08:08.40
IV.MTSN.HNE. ML:1.9 0.0001090689 3.56 AML other m 2021-09-23T00:08:07.02
IV.MSAG.HHN. ML:2.1 0.0001315 0.84 AML other m 2021-09-23T00:08:09.50
IV.SGRT.HHE. ML:2.2 0.0001599865 0.14 AML other m 2021-09-23T00:08:10.40
OT.TAR1.HHE. ML:2.1 0.000138968615 0.2 AML other m 2021-09-23T00:08:11.13
IV.SGRT.HHN. ML:2.2 0.00013293453999999998 0.12 AML other m 2021-09-23T00:08:11.90
IV.APRC.HNE. ML:2.3 0.0001684282 0.33 AML other m 2021-09-23T00:08:12.00
IV.APRC.HHE. ML:2.4 0.0001934159 0.34 AML other m 2021-09-23T00:08:13.09
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