Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 27-03-2023 and time 22:42:30 (UTC) in region 8 km SE Zapponeta (FG)

A magnitude ML 2.1 earthquake occured in region: 8 km SE Zapponeta (FG), on

  • 27-03-2023 22:42:30 (UTC)
  • 28-03-2023 00:42:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.3890, 15.9860 at 7 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
Zapponeta FG 8 3396 3396
Trinitapoli BT 9 14733 18129
San Ferdinando di Puglia BT 12 13987 32116
Margherita di Savoia BT 14 11974 44090
Cerignola FG 15 58396 102486
Canosa di Puglia BT 19 30294 132780

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km NE of Cerignola (58396 inhabitants)
26 Km W of Barletta (94814 inhabitants)
27 Km S of Manfredonia (57279 inhabitants)
31 Km NW of Andria (100440 inhabitants)
38 Km E of Foggia (151991 inhabitants)
38 Km W of Trani (56217 inhabitants)
46 Km W of Bisceglie (55422 inhabitants)
55 Km W of Molfetta (59874 inhabitants)
60 Km SE of San Severo (53905 inhabitants)
67 Km W of Bitonto (55540 inhabitants)
78 Km NW of Altamura (70396 inhabitants)
79 Km W of Bari (326344 inhabitants)
85 Km N of Potenza (67122 inhabitants)
95 Km NW of Matera (60436 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 2.1 2023-03-27
22:42:30		 41.3888 15.9863 7 2024-03-01
17:18:16		 Bollettino Sismico Italiano INGV 121193071
Reviewed
Rev100 		ML 2.1 2023-03-27
22:42:30		 41.3845 15.9868 6 2023-03-27
22:58:23		 Sala Sismica INGV-Roma 115807531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-27 22:42:30 ± 0.12
Latitude 41.3888 ± 0.0036
Longitude 15.9863 ± 0.0060
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 121193071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 574
Semi-minor axis of confidence ellipse (meter) 186
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 243
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.00904
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 121193071
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-12-18 16:41:27

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 115807531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-27 22:58:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRJA.HHZ. 2023-03-27T22:44:22.87 3.0 undecidable manual Sn -0.29 0
IV.MSRU.HHZ. 2023-03-27T22:44:03.94 3.0 undecidable manual Sg 8.02 0
ST.OZOL.EHZ. 2023-03-27T22:44:00.34 3.0 undecidable manual P -2 0
IV.BDI.HHZ. 2023-03-27T22:43:59.60 3.0 undecidable manual P 1.617 0
IV.RIBO.EHZ.01 2023-03-27T22:43:43.83 3.0 negative manual P 1.143 0
IV.MPG.HHZ. 2023-03-27T22:43:35.98 3.0 undecidable manual P 5.97 0
IV.EPOZ.HHZ. 2023-03-27T22:43:32.37 3.0 undecidable manual P 2.9 0
IV.IVPL.HHZ. 2023-03-27T22:43:17.81 3.0 undecidable manual P -2.58 0
IV.NOCI.HHZ. 2023-03-27T22:43:03.90 0.3 undecidable manual S 126 111.999 50 0.4 61
GE.MATE.HHZ. 2023-03-27T22:43:00.80 0.6 undecidable manual S 144 101.7204 50 0.06 44
OT.OT15.EHZ. 2023-03-27T22:42:55.20 0.6 undecidable manual S 112 80.7636 50 0.07 46
IV.AMUR.HHZ. 2023-03-27T22:42:53.30 0.6 undecidable manual S 136 74.2701 50 -0.12 46
IV.ACER.HHZ. 2023-03-27T22:42:51.00 0.6 undecidable manual S 183 66.8775 50 -0.44 44
IV.SGTA.HNE. 2023-03-27T22:42:49.60 0.6 undecidable manual S 242 58.9965 50 0.27 46
OT.OT13.EHN. 2023-03-27T22:42:49.10 0.3 undecidable manual S 16 56.8986 50 0.34 68
IV.NOCI.HHZ. 2023-03-27T22:42:49.24 0.3 undecidable manual P 126 111.999 50 -0.2 63
OT.OT14.EHZ. 2023-03-27T22:42:48.50 0.6 undecidable manual S 353 56.6988 50 -0.22 47
IV.VULT.HHZ. 2023-03-27T22:42:48.70 0.6 undecidable manual S 213 57.1983 50 -0.15 47
OT.OT11.EHZ. 2023-03-27T22:42:48.90 0.6 undecidable manual S 285 55.8996 50 0.39 45
IV.APRC.HHZ. 2023-03-27T22:42:48.40 0.6 undecidable manual S 318 55.0005 50 0.13 48
IV.PTRP.HHZ. 2023-03-27T22:42:47.53 0.6 undecidable manual P 176 96.4257 50 0.5 41
IV.MIGL.HHZ. 2023-03-27T22:42:47.21 0.6 undecidable manual P 156 94.9383 50 0.4 42
GE.MATE.HHZ. 2023-03-27T22:42:47.70 0.3 undecidable manual P 144 101.7204 50 -0.14 65
OT.OT05.EHZ. 2023-03-27T22:42:45.00 0.3 undecidable manual S 313 43.7229 50 -0.27 71
IV.MELA.HNZ. 2023-03-27T22:42:45.52 0.3 undecidable manual P 297 79.5648 50 1.1 49
IV.SGRT.HHZ. 2023-03-27T22:42:45.50 0.3 undecidable manual S 334 45.3213 50 -0.18 72
OT.OT15.EHZ. 2023-03-27T22:42:45.08 1.0 undecidable manual P 112 80.7636 50 0.47 21
OT.OT03.EHE. 2023-03-27T22:42:45.31 0.6 undecidable manual S 322 45.4212 50 -0.41 46
IV.AMUR.HHZ. 2023-03-27T22:42:43.27 0.6 undecidable manual P 136 74.2701 50 -0.34 44
IV.MOCO.HHN. 2023-03-27T22:42:43.60 0.3 undecidable manual P 269 68.9754 50 0.8 57
OT.OT07.EHE. 2023-03-27T22:42:42.30 0.3 undecidable manual S 319 34.0437 102 0.01 76
IV.ACER.HHZ. 2023-03-27T22:42:42.09 0.1 undecidable manual P 183 66.8775 50 -0.39 89
OT.OT11.EHZ. 2023-03-27T22:42:41.19 1.0 undecidable manual P 285 55.8996 50 0.4 23
OT.OT13.EHN. 2023-03-27T22:42:41.32 0.6 undecidable manual P 16 56.8986 50 0.39 45
IV.SGTA.HNE. 2023-03-27T22:42:41.33 0.6 undecidable manual P 242 58.9965 50 0.07 48
IV.APRC.HHZ. 2023-03-27T22:42:40.58 0.1 undecidable manual P 318 55.0005 50 -0.07 97
OT.OT14.EHZ. 2023-03-27T22:42:40.65 0.3 undecidable manual P 353 56.6988 50 -0.26 70
OT.OT12.EHZ. 2023-03-27T22:42:40.20 0.6 undecidable manual S 346 27.75 104 0.04 51
IV.VULT.HHZ. 2023-03-27T22:42:40.90 0.3 undecidable manual P 213 57.1983 50 -0.09 72
OT.OT06.EHZ. 2023-03-27T22:42:39.08 0.3 undecidable manual P 315 46.3203 50 -0.22 71
OT.OT03.EHE. 2023-03-27T22:42:39.05 0.3 undecidable manual P 322 45.4212 50 -0.13 73
OT.OT05.EHZ. 2023-03-27T22:42:38.84 0.1 undecidable manual P 313 43.7229 50 -0.07 99
IV.PALZ.HHZ. 2023-03-27T22:42:38.87 1.0 undecidable manual P 183 49.4172 50 -0.91 19
IV.SGRT.HHZ. 2023-03-27T22:42:38.84 0.3 undecidable manual P 334 45.3213 50 -0.31 70
OT.OT07.EHE. 2023-03-27T22:42:36.90 0.3 undecidable manual P 319 34.0437 102 -0.29 72
OT.OT12.EHZ. 2023-03-27T22:42:36.12 0.1 undecidable manual P 346 27.75 104 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OT.OT12.EHN. ML:1.5 0.0001665 1.64 AML other m 2023-03-27T22:42:42.85
OT.OT12.EHE. ML:1.4 0.0001565 0.74 AML other m 2023-03-27T22:42:42.10
IV.MRVN.HHN. ML:1.6 0.000153 1.18 AML other m 2023-03-27T22:42:43.85
IV.SGRT.HHE. ML:2.0 0.00033650000000000005 1.28 AML other m 2023-03-27T22:42:46.88
IV.MRVN.HHE. ML:1.6 0.0001455 0.78 AML other m 2023-03-27T22:42:46.88
IV.SGRT.HHN. ML:2.1 0.000347 0.14 AML other m 2023-03-27T22:42:46.62
IV.AMUR.HHN. ML:2.2 0.00027400000000000005 0.24 AML other m 2023-03-27T22:42:54.73
IV.AMUR.HNN. ML:2.3 0.00027850000000000005 0.26 AML other m 2023-03-27T22:42:54.74
IV.AMUR.HHE. ML:2.3 0.0003045 0.26 AML other m 2023-03-27T22:42:54.90
IV.AMUR.HNE. ML:2.3 0.00027850000000000005 0.24 AML other m 2023-03-27T22:42:54.78
OT.OT15.EHN. ML:2.0 0.00014000000000000001 1.5 AML other m 2023-03-27T22:42:56.87
OT.OT15.EHE. ML:2.2 0.00021799999999999999 0.64 AML other m 2023-03-27T22:42:56.61
GE.MATE.HHN. ML:2.2 0.0001613 0.52 AML other m 2023-03-27T22:43:01.51
GE.MATE.HHE. ML:2.2 0.0001595 0.5 AML other m 2023-03-27T22:43:01.37
IV.NOCI.HHN. ML:2.4 0.0001915 0.42 AML other m 2023-03-27T22:43:06.34
IV.NOCI.HHE. ML:2.3 0.000178 0.56 AML other m 2023-03-27T22:43:06.58
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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