Earthquake with magnitude of ML 1.7 on date 27-04-2023 and time 12:37:03 (Italy) in region Costa Garganica (Foggia)

A magnitude ML 1.7 earthquake occured in region: Costa Garganica (Foggia), on

  • 27-04-2023 10:37:03 (UTC)
  • 27-04-2023 12:37:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.9340, 15.4670 at 24 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Lesina FG 12 6410 6410
San Nicandro Garganico FG 13 15566 21976
Poggio Imperiale FG 15 2724 24700
Apricena FG 17 13328 38028

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km N of San Severo (53905 inhabitants)
51 Km NW of Manfredonia (57279 inhabitants)
53 Km N of Foggia (151991 inhabitants)
83 Km NW of Cerignola (58396 inhabitants)
96 Km NW of Barletta (94814 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 2023-04-27
10:37:03
41.9343 15.4667 24 2024-03-01
17:18:06
Bollettino Sismico Italiano INGV 117139921
Reviewed
Rev100
ML 1.7 2023-04-27
10:37:03
41.9307 15.4837 23 2023-04-27
12:03:31
Sala Sismica INGV-Roma 116799741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-27 10:37:03 ± 0.11
Latitude 41.9343 ± 0.0036
Longitude 15.4667 ± 0.0048
Depth (km) 24 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 117139921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 450
Semi-minor axis of confidence ellipse (meter) 70
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 216
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) 124
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.18616
Epicentral distance of station farthest from the epicenter (degree) 0.36512
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 117139921
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-29 14:45:35

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 116799741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-27 12:03:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OT.OT07.EHE. 2023-04-27T10:37:17.74 0.6 undecidable manual S 149 40.5261 113 -0.01 48
IV.MELA.HHZ. 2023-04-27T10:37:17.74 0.6 undecidable manual S 228 37.8288 115 0.64 41
OT.OT14.EHZ. 2023-04-27T10:37:16.89 0.6 undecidable manual S 96 36.5412 116 0.1 48
IV.SGRT.HHZ. 2023-04-27T10:37:15.62 0.6 undecidable manual S 131 30.3474 121 0.29 46
OT.OT05.EHZ. 2023-04-27T10:37:15.92 0.6 undecidable manual S 160 32.5452 119 0.09 48
OT.OT06.EHN. 2023-04-27T10:37:15.14 0.6 undecidable manual S 159 29.5482 122 -0.01 49
OT.OT03.EHN. 2023-04-27T10:37:15.13 0.6 undecidable manual S 148 28.9488 123 0.12 48
OT.OT16.EHZ. 2023-04-27T10:37:14.72 0.3 undecidable manual S 246 26.8509 125 0.17 71
OT.OT04.EHZ. 2023-04-27T10:37:14.01 0.1 undecidable manual S 158 25.6521 126 -0.27 94
IV.APRC.HHZ. 2023-04-27T10:37:13.23 0.1 undecidable manual S 162 20.6682 133 -0.03 100
IV.TREM.HHN. 2023-04-27T10:37:13.42 0.6 undecidable manual S 10 21.2676 133 0.05 49
OT.OT14.EHZ. 2023-04-27T10:37:11.47 0.1 positive manual P 96 36.5412 116 0.18 94
IV.MELA.HHZ. 2023-04-27T10:37:11.46 0.1 positive manual P 228 37.8288 115 0 97
OT.OT07.EHE. 2023-04-27T10:37:11.78 0.3 undecidable manual P 149 40.5261 113 -0.06 71
OT.OT03.EHN. 2023-04-27T10:37:10.24 0.3 undecidable manual P 148 28.9488 123 -0.02 74
IV.SGRT.HHZ. 2023-04-27T10:37:10.51 0.1 negative manual P 131 30.3474 121 0.06 97
OT.OT05.EHZ. 2023-04-27T10:37:10.65 0.1 positive manual P 160 32.5452 119 -0.09 96
OT.OT06.EHN. 2023-04-27T10:37:10.32 0.1 undecidable manual P 159 29.5482 122 -0.02 98
IV.APRC.HHZ. 2023-04-27T10:37:09.21 0.1 negative manual P 162 20.6682 133 -0.04 100
OT.OT16.EHZ. 2023-04-27T10:37:09.66 0.3 undecidable manual P 246 26.8509 125 -0.34 70
OT.OT04.EHZ. 2023-04-27T10:37:09.69 0.1 undecidable manual P 158 25.6521 126 -0.15 96
IV.TREM.HHN. 2023-04-27T10:37:09.22 0.3 undecidable manual P 10 21.2676 133 -0.1 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.APRC.HHE. ML:1.8 0.00029749999999999997 0.18 AML other m 2023-04-27T10:37:13.38
IV.APRC.HNE. ML:1.8 0.00034351385 0.1728 AML other m 2023-04-27T10:37:13.38
IV.APRC.HHN. ML:1.9 0.0003785 1.1 AML other m 2023-04-27T10:37:13.87
IV.SGRT.HHN. ML:1.5 0.0001275 0.2 AML other m 2023-04-27T10:37:16.10
IV.SGRT.HHE. ML:1.6 0.0001395 1.66 AML other m 2023-04-27T10:37:16.10
OT.OT05.EHN. ML:1.4 0.00008957054000000001 0.2816 AML other m 2023-04-27T10:37:16.09
IV.MELA.HHE. ML:1.5 0.000096575495 0.2624 AML other m 2023-04-27T10:37:18.02
IV.MELA.HHN. ML:1.7 0.0001640473 0.2816 AML other m 2023-04-27T10:37:18.04
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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