Earthquake (quarry blast) with magnitude of ML 1.6 on date 30-09-2020 and time 09:25:39 (UTC) in region 11 km S Rignano Garganico (FG)

A magnitude ML 1.6 (quarry blast) earthquake occured in region: 11 km S Rignano Garganico (FG), on

  • 30-09-2020 09:25:39 (UTC)
  • 30-09-2020 11:25:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.585, 15.627 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: quarry blast.

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
Rignano Garganico FG 11 2117 2117
San Marco in Lamis FG 14 13831 15948
Foggia FG 15 151991 167939
San Giovanni Rotondo FG 16 27184 195123

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km NE of Foggia (151991 inhabitants)
23 Km SE of San Severo (53905 inhabitants)
25 Km W of Manfredonia (57279 inhabitants)
42 Km NW of Cerignola (58396 inhabitants)
62 Km W of Barletta (94814 inhabitants)
69 Km NW of Andria (100440 inhabitants)
74 Km W of Trani (56217 inhabitants)
82 Km W of Bisceglie (55422 inhabitants)
87 Km NE of Benevento (60091 inhabitants)
92 Km W of Molfetta (59874 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 1.6 2020-09-30
09:25:39
41.585 15.627 1 2021-02-26
14:56:12
Bollettino Sismico Italiano INGV 85789641
Reviewed
Rev100
ML 1.6 2020-09-30
09:25:39
41.5978 15.6347 0 2020-09-30
09:32:32
Sala Sismica INGV-Roma 83385391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-30 09:25:39 ± 0.34
Latitude 41.5850 ± 0.0171
Longitude 15.6270 ± 0.0108
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type quarry blast
Origin ID 85789641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1920
Semi-minor axis of confidence ellipse (meter) 880
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 356
Circular confidence region, given by single value of horizontal uncertainty (meter) 1920
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 229
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.07644
Epicentral distance of station farthest from the epicenter (degree) 0.3921
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 83385391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-30 09:32:32

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 85789641
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-28 11:49:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MELA.HHZ. 2020-09-30T09:25:47.94 0.3 undecidable manual P 288 0.3921 91 -0.07 71
IV.MSAG.HHZ. 2020-09-30T09:25:44.85 0.3 undecidable manual P 59 0.2464 91 0.09 73
IV.SGRT.HHZ. 2020-09-30T09:25:43.51 0.1 undecidable manual P 27 0.1907 91 -0.01 100
IV.APRC.HHZ. 2020-09-30T09:25:43.36 0.1 undecidable manual P 340 0.1835 91 0 100
OT.OT04.EHN. 2020-09-30T09:25:42.59 0.3 undecidable manual P 346 0.1385 92 0.21 72
OT.OT06.EHZ. 2020-09-30T09:25:41.91 0.1 undecidable manual P 346 0.1034 92 0.32 95
OT.OT03.EHZ. 2020-09-30T09:25:41.86 0.1 undecidable manual P 8 0.1286 92 -0.28 95
OT.OT05.EHZ. 2020-09-30T09:25:40.79 0.1 positive manual P 346 0.0764 93 -0.2 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SGRT.HHN. ML:1.8 0.000531 0.2 AML other m 2020-09-30T09:25:46.37
IV.SGRT.HHE. ML:1.7 0.0003975 0.18 AML other m 2020-09-30T09:25:46.55
IV.APRC.HHE. ML:1.8 0.0005205 0.66 AML other m 2020-09-30T09:25:47.63
IV.APRC.HHN. ML:1.8 0.0005775 1.62 AML other m 2020-09-30T09:25:49.08
IV.MSAG.HHE. ML:1.3 0.000118 0.66 AML other m 2020-09-30T09:25:50.60
IV.MSAG.HHN. ML:1.5 0.000197 0.26 AML other m 2020-09-30T09:25:51.55
IV.MELA.HHN. ML:1.5 0.0001075 0.42 AML other m 2020-09-30T09:25:57.95
IV.MELA.HHE. ML:1.5 9.6E-5 0.36 AML other m 2020-09-30T09:26:01.34
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