Earthquake (quarry blast) with magnitude of ML 1.2 on date 11-11-2020 and time 10:32:29 (UTC) in region 8 km SW San Giovanni Rotondo (FG)

A magnitude ML 1.2 (quarry blast) earthquake occured in region: 8 km SW San Giovanni Rotondo (FG), on

  • 11-11-2020 10:32:29 (UTC)
  • 11-11-2020 11:32:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.6470, 15.6800 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
San Giovanni Rotondo FG 8 27184 27184
San Marco in Lamis FG 8 13831 41015
Rignano Garganico FG 8 2117 43132

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km W of Manfredonia (57279 inhabitants)
23 Km NE of Foggia (151991 inhabitants)
25 Km E of San Severo (53905 inhabitants)
46 Km NW of Cerignola (58396 inhabitants)
62 Km NW of Barletta (94814 inhabitants)
69 Km NW of Andria (100440 inhabitants)
74 Km NW of Trani (56217 inhabitants)
82 Km NW of Bisceglie (55422 inhabitants)
91 Km NW of Molfetta (59874 inhabitants)
94 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 1.2 2020-11-11
10:32:29
41.6473 15.6802 1 2021-02-26
14:56:15
Bollettino Sismico Italiano INGV 86245351
Reviewed
Rev100
ML 1.4 2020-11-11
10:32:27
41.6103 15.6875 10 2020-11-11
10:39:51
Sala Sismica INGV-Roma 84634641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-11 10:32:29 ± 0.39
Latitude 41.6473 ± 0.0207
Longitude 15.6802 ± 0.0144
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 86245351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2480
Semi-minor axis of confidence ellipse (meter) 670
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 337
Circular confidence region, given by single value of horizontal uncertainty (meter) 2480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 257
Number of associated phases, regardless of their use for origin computation 4
Number of defining phases 4
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.05936
Epicentral distance of station farthest from the epicenter (degree) 0.15019
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 86245351
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-14 13:13:10

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 84634641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-11 10:39:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.APRC.HHZ. 2020-11-11T10:32:32.37 0.1 undecidable manual P 317 16.6722 92 -0.1 96
OT.OT04.EHN. 2020-11-11T10:32:31.57 0.3 undecidable manual P 314 11.4774 92 0.14 72
IV.SGRT.HHZ. 2020-11-11T10:32:31.74 0.1 positive manual P 24 12.9759 92 0 99
OT.OT05.EHZ. 2020-11-11T10:32:30.44 0.1 undecidable manual P 281 6.5934 94 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SGRT.HHN. ML:1.1 0.0001715 1.52 AML other m 2020-11-11T10:32:37.96
IV.APRC.HHE. ML:1.2 0.00016899314999999998 0.3776 AML other m 2020-11-11T10:32:38.66
IV.SGRT.HHE. ML:1.1 0.00016700000000000002 0.58 AML other m 2020-11-11T10:32:38.68
IV.APRC.HHN. ML:1.2 0.00018030784999999999 0.8256 AML other m 2020-11-11T10:32:40.44
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