Earthquake (quarry blast) with magnitude of ML 1.0 on date 17-04-2020 and time 10:22:37 (Italy) in region 13 km SW Manfredonia (FG)

A magnitude ML 1.0 (quarry blast) earthquake occured in region: 13 km SW Manfredonia (FG), on

  • 17-04-2020 08:22:37 (UTC)
  • 17-04-2020 10:22:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.57, 15.78 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
Manfredonia FG 13 57279 57279
San Giovanni Rotondo FG 17 27184 84463
Zapponeta FG 19 3396 87859

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km SW of Manfredonia (57279 inhabitants)
23 Km NE of Foggia (151991 inhabitants)
35 Km N of Cerignola (58396 inhabitants)
36 Km E of San Severo (53905 inhabitants)
49 Km NW of Barletta (94814 inhabitants)
57 Km NW of Andria (100440 inhabitants)
62 Km NW of Trani (56217 inhabitants)
70 Km NW of Bisceglie (55422 inhabitants)
79 Km NW of Molfetta (59874 inhabitants)
91 Km NW of Bitonto (55540 inhabitants)
97 Km NE of Benevento (60091 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 1.0 2020-04-17
08:22:37
41.57 15.78 1 2020-07-18
21:08:41
Bollettino Sismico Italiano INGV 80412751
Reviewed
Rev100
ML 1.1 2020-04-17
08:22:37
41.57 15.79 5 2020-04-17
08:27:51
Sala Sismica INGV-Roma 78313561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-17 08:22:37 ± 0.43
Latitude 41.57 ± 0.03
Longitude 15.78 ± 0.01
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 80412751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2790
Semi-minor axis of confidence ellipse (meter) 630
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 357
Circular confidence region, given by single value of horizontal uncertainty (meter) 2790
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 250
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.11331
Epicentral distance of station farthest from the epicenter (degree) 0.2626
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.5
Num. used stations 8
Type of magnitude ML
Reference to an origin 78313561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-17 08:27:51

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 80412751
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-22 19:09:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.APRC.HHN. 2020-04-17T08:22:43.21 0.3 undecidable manual P 317 0.2626 91 0.2 71
OT.OT04.EHZ. 2020-04-17T08:22:42.17 0.1 undecidable manual P 315 0.2167 91 0.2 96
OT.OT06.EHN. 2020-04-17T08:22:41.00 0.3 undecidable manual P 310 0.1862 91 -0.29 71
IV.SGRT.HHZ. 2020-04-17T08:22:41.36 0.1 positive manual P 351 0.1907 91 -0.05 100
IV.MSAG.HHZ. 2020-04-17T08:22:40.96 0.1 undecidable manual P 33 0.1736 91 -0.05 100
OT.OT05.EHZ. 2020-04-17T08:22:40.73 0.3 undecidable manual P 304 0.1646 92 -0.1 74
OT.OT12.EHZ. 2020-04-17T08:22:39.74 0.3 undecidable manual P 54 0.1133 92 0.06 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OT.OT12.EHN. ML:2.8 0.009492072 0.2624 AML other m 2020-04-17T08:22:43.03
OT.OT12.EHE. ML:2.5 0.0054713255 0.2368 AML other m 2020-04-17T08:22:43.66
IV.SGRT.HHE. ML:1.2 0.0001319271 0.16 AML other m 2020-04-17T08:22:44.52
IV.SGRT.HHN. ML:1.1 0.000103971615 0.16 AML other m 2020-04-17T08:22:44.58
IV.MSAG.HHE. ML:0.4 2.4849885E-5 0.224 AML other m 2020-04-17T08:22:46.06
IV.MSAG.HNE. ML:1 7.9280665E-5 0.224 AML other m 2020-04-17T08:22:46.06
IV.MSAG.HHN. ML:0.8 5.1654915E-5 0.2432 AML other m 2020-04-17T08:22:50.53
IV.MSAG.HNN. ML:1.2 0.00012670595 0.3008 AML other m 2020-04-17T08:22:50.65
IV.PTRJ.HHE. ML:1.2 1.262572E-5 0.5824 AML other m 2020-04-17T08:22:55.38
IV.PTRJ.HNE. ML:3.1 0.00120320815 0.5888 AML other m 2020-04-17T08:23:06.68
IV.PTRJ.HHN. ML:0.7 5.8410681E-6 1.1552 AML other m 2020-04-17T08:23:09.90
IV.PTRJ.HNN. ML:3.1 0.0010900218 0.736 AML other m 2020-04-17T08:23:20.54
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download