Earthquake with magnitude of ML 1.8 on date 21-12-2023 and time 01:08:36 (UTC) in region 7 km NE San Nicandro Garganico (FG)

A magnitude ML 1.8 earthquake occured in region: 7 km NE San Nicandro Garganico (FG), on

  • 21-12-2023 01:08:36 (UTC)
  • 21-12-2023 02:08:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.8850, 15.6260 at 19 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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.

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 Nicandro Garganico FG 7 15566 15566
Cagnano Varano FG 14 7330 22896
Apricena FG 19 13328 36224
San Marco in Lamis FG 19 13831 50055
Carpino FG 20 4182 54237

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NE of San Severo (53905 inhabitants)
37 Km NW of Manfredonia (57279 inhabitants)
47 Km N of Foggia (151991 inhabitants)
73 Km NW of Cerignola (58396 inhabitants)
83 Km NW of Barletta (94814 inhabitants)
92 Km NW of Andria (100440 inhabitants)
95 Km NW of Trani (56217 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 1.8 2023-12-21
01:08:36
41.8853 15.6265 19 2023-12-21
01:15:30
Sala Sismica INGV-Roma 124169161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-21 01:08:36 ± 0.1
Latitude 41.8853 ± 0.0045
Longitude 15.6265 ± 0.0060
Depth (km) 19 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124169161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 527
Semi-minor axis of confidence ellipse (meter) 112
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 37
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41279
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 33
Type of magnitude ML
Reference to an origin 124169161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-21 01:15:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GUMA.HHZ. 2023-12-21T01:09:44.35 3.0 undecidable manual Sg 8.57 0
IV.NOCI.HHZ. 2023-12-21T01:09:22.43 3.0 undecidable manual Sn -1.07 0
IV.ACER.HHZ. 2023-12-21T01:09:14.08 3.0 undecidable manual S 0.75 0
IV.CET2.HHZ. 2023-12-21T01:09:12.27 3.0 positive manual Pn -2.08 0
IV.AMUR.HHZ. 2023-12-21T01:08:59.93 3.0 positive manual P 1.29 0
IV.ACER.HHZ. 2023-12-21T01:08:58.74 3.0 undecidable manual P 1.46 0
IV.LPEL.HHZ. 2023-12-21T01:08:57.59 3.0 undecidable manual P 1.02 0
IV.MRVN.HHZ. 2023-12-21T01:08:54.87 3.0 positive manual P 0.27 0
IV.MELA.HHZ. 2023-12-21T01:08:52.46 0.6 undecidable manual S 244 45.8208 103 0.54 43
OT.OT12.EHZ. 2023-12-21T01:08:49.25 0.6 undecidable manual S 140 36.5412 108 -0.26 48
OT.OT07.EHE. 2023-12-21T01:08:47.51 0.6 undecidable manual S 165 30.2475 113 -0.44 46
IV.TREM.HNE. 2023-12-21T01:08:47.18 0.6 undecidable manual S 340 28.0497 115 -0.23 48
OT.OT14.EHZ. 2023-12-21T01:08:46.49 0.6 undecidable manual S 87 23.1546 121 0.23 49
OT.OT03.EHE. 2023-12-21T01:08:45.44 0.6 undecidable manual S 174 19.2696 127 0.05 51
IV.SGRT.HHZ. 2023-12-21T01:08:45.10 0.6 undecidable manual S 146 17.4714 130 0.09 51
IV.MELA.HHZ. 2023-12-21T01:08:45.54 0.1 positive manual P 244 45.8208 103 -0.06 98
OT.OT04.EHE. 2023-12-21T01:08:45.10 0.6 undecidable manual S 192 18.7701 128 -0.18 50
IV.APRC.HHZ. 2023-12-21T01:08:44.60 0.6 undecidable manual S 206 15.7731 134 -0.08 51
OT.OT12.EHZ. 2023-12-21T01:08:44.16 0.1 negative manual P 140 36.5412 108 -0.05 100
OT.OT07.EHE. 2023-12-21T01:08:43.18 0.3 undecidable manual P 165 30.2475 113 -0.13 75
IV.MSAG.HHZ. 2023-12-21T01:08:43.54 0.1 negative manual P 129 30.2475 113 0.23 96
OT.OT14.EHZ. 2023-12-21T01:08:42.52 1.0 positive manual P 87 23.1546 121 0.19 25
IV.TREM.HNE. 2023-12-21T01:08:42.84 0.6 undecidable manual P 340 28.0497 115 -0.16 49
OT.OT05.EHZ. 2023-12-21T01:08:42.40 1.0 undecidable manual P 185 25.1526 118 -0.2 25
OT.OT04.EHE. 2023-12-21T01:08:41.76 0.6 undecidable manual P 192 18.7701 128 -0.01 52
IV.APRC.HHZ. 2023-12-21T01:08:41.45 0.3 positive manual P 206 15.7731 134 0.03 77
OT.OT03.EHE. 2023-12-21T01:08:41.83 0.6 undecidable manual P 174 19.2696 127 0 52
IV.SGRT.HHZ. 2023-12-21T01:08:41.83 0.1 negative manual P 146 17.4714 130 0.22 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.APRC.HHN. ML:2.0 0.0006447309 0.1 AML other m 2023-12-21T01:08:46.11
IV.APRC.HHE. ML:2.1 0.00076961375 0.2 AML other m 2023-12-21T01:08:45.05
IV.SGRT.HHE. ML:1.9 0.0004629486 0.16 AML other m 2023-12-21T01:08:45.50
IV.SGRT.HNE. ML:1.8 0.0004361406 0.16 AML other m 2023-12-21T01:08:45.50
IV.SGRT.HNN. ML:1.8 0.0004196044 0.14 AML other m 2023-12-21T01:08:45.39
IV.SGRT.HHN. ML:1.9 0.00045798325 0.1 AML other m 2023-12-21T01:08:45.51
OT.OT14.EHE. ML:1.7 0.0002740974 0.1 AML other m 2023-12-21T01:08:46.83
OT.OT14.EHN. ML:1.7 0.00024750305 0.06 AML other m 2023-12-21T01:08:46.81
IV.APRC.HNE. ML:2.1 0.0008080135 0.2104 AML other m 2023-12-21T01:08:45.05
IV.APRC.HNN. ML:2.1 0.0007555695 0.66 AML other m 2023-12-21T01:08:52.21
OT.OT05.EHE. ML:0.0 0.0000028896400000000005 0.12 AML other m 2023-12-21T01:08:47.57
OT.OT05.EHN. ML:1.8 0.0002759161 0.26 AML other m 2023-12-21T01:08:48.27
IV.MSAG.HNN. ML:4.7 0.22047905 24.1 AML other m 2023-12-21T01:08:45.55
OT.OT12.EHE. ML:1.2 0.00004837863 0.12 AML other m 2023-12-21T01:08:51.85
OT.OT12.EHN. ML:1.2 0.000062261665 0.12 AML other m 2023-12-21T01:08:50.25
IV.MELA.HNN. ML:1.9 0.00019498890000000003 0.5608 AML other m 2023-12-21T01:09:01.41
IV.MELA.HHE. ML:1.8 0.000185375625 0.2 AML other m 2023-12-21T01:08:52.64
IV.MELA.HHN. ML:1.5 0.00008810522999999999 1.1 AML other m 2023-12-21T01:08:48.02
IV.MELA.HNE. ML:1.8 0.0001766417 0.2096 AML other m 2023-12-21T01:08:52.65
IV.MRVN.HHN. ML:1.3 0.000018133535 0.24 AML other m 2023-12-21T01:09:08.76
IV.MRVN.HHE. ML:1.3 0.00001999863 0.18 AML other m 2023-12-21T01:09:08.77
IV.LPEL.HHN. ML:1.6 0.0000298523335 0.2 AML other m 2023-12-21T01:09:16.44
IV.LPEL.HNE. ML:2.3 0.0001511858 0.68 AML other m 2023-12-21T01:09:27.05
IV.LPEL.HNN. ML:2.3 0.000160818375 0.9392 AML other m 2023-12-21T01:09:07.46
IV.LPEL.HHE. ML:1.9 0.00005974218 0.98 AML other m 2023-12-21T01:08:58.87
IV.ACER.HHN. ML:1.7 0.00003660421 0.5 AML other m 2023-12-21T01:09:20.48
IV.ACER.HNE. ML:1.9 0.000060234090000000006 1.0304 AML other m 2023-12-21T01:09:26.22
IV.ACER.HNN. ML:1.9 0.00004914195 0.8696 AML other m 2023-12-21T01:09:25.21
IV.ACER.HHE. ML:1.9 0.000056606489999999993 0.46 AML other m 2023-12-21T01:09:18.51
IV.AMUR.HHN. ML:1.6 0.000024560685 0.86 AML other m 2023-12-21T01:09:38.17
IV.AMUR.HNE. ML:1.9 0.00005059876 0.9704 AML other m 2023-12-21T01:09:16.66
IV.AMUR.HNN. ML:2.0 0.00005669945 0.74 AML other m 2023-12-21T01:09:17.64
IV.AMUR.HHE. ML:1.6 0.00002593589 0.18 AML other m 2023-12-21T01:09:20.24
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download