Earthquake (quarry blast) with magnitude of ML 1.4 on date 26-10-2021 and time 11:12:01 (Italy) in region 9 km S San Giovanni Rotondo (FG)

A magnitude ML 1.4 (quarry blast) earthquake occured in region: 9 km S San Giovanni Rotondo (FG), on

  • 26-10-2021 09:12:01 (UTC)
  • 26-10-2021 11:12:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6280, 15.7100 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 9 27184 27184
San Marco in Lamis FG 11 13831 41015
Rignano Garganico FG 12 2117 43132
Manfredonia FG 17 57279 100411

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km W of Manfredonia (57279 inhabitants)
23 Km NE of Foggia (151991 inhabitants)
28 Km E of San Severo (53905 inhabitants)
43 Km NW of Cerignola (58396 inhabitants)
58 Km NW of Barletta (94814 inhabitants)
66 Km NW of Andria (100440 inhabitants)
71 Km NW of Trani (56217 inhabitants)
79 Km NW of Bisceglie (55422 inhabitants)
88 Km NW of Molfetta (59874 inhabitants)
95 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 1.4 2021-10-26
09:12:01
41.6278 15.7103 1 2022-03-30
13:04:40
Bollettino Sismico Italiano INGV 101610551
Reviewed
Rev100
ML 1.5 2021-10-26
09:12:01
41.5907 15.7042 5 2021-10-26
09:25:13
Sala Sismica INGV-Roma 96998551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-26 09:12:01 ± 0.1
Latitude 41.6278 ± 0.0072
Longitude 15.7103 ± 0.0072
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 101610551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 880
Semi-minor axis of confidence ellipse (meter) 450
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 25
Circular confidence region, given by single value of horizontal uncertainty (meter) 880.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 9
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.17986
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 101610551
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-02 15:04:10

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 96998551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-26 09:25:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IMOL.HNZ. 2021-10-26T09:13:35.72 3.0 undecidable manual Sn -2.71 0
GU.CANO.HHZ. 2021-10-26T09:13:33.81 3.0 undecidable manual Pg 18.950001 0
IV.BRSN.EHZ. 2021-10-26T09:13:31.50 3.0 undecidable manual Sn -1.96 0
IV.CAPR.HNZ. 2021-10-26T09:13:30.97 3.0 positive manual Pg 16.43 0
SI.ROSI.HHZ. 2021-10-26T09:13:26.38 3.0 negative manual Pn 4.6 0
OX.MPRI.HHZ. 2021-10-26T09:13:22.43 3.0 positive manual Pg 14.83 0
OX.VARN.HHZ. 2021-10-26T09:13:21.06 3.0 undecidable manual Pg 13.71 0
IV.ALJA.HHZ. 2021-10-26T09:13:18.33 3.0 undecidable manual Sn -4.49 0
IV.CADC.HNZ. 2021-10-26T09:13:16.85 3.0 positive manual Pn 5.43 0
CR.STON.BHZ. 2021-10-26T09:13:11.82 3.0 undecidable manual Sg 7.3 0
IV.MPNC.HHZ. 2021-10-26T09:13:09.31 3.0 undecidable manual Sn -0.62 0
IV.FDMO.HHZ. 2021-10-26T09:12:58.55 3.0 undecidable manual Sn 0.26 0
GU.POPM.HHZ. 2021-10-26T09:12:57.49 3.0 negative manual Pn 4.25 0
IV.SENA.HHZ. 2021-10-26T09:12:55.18 3.0 negative manual Pn 2.85 0
IV.IMOL.HNZ. 2021-10-26T09:12:51.14 3.0 positive manual Pn 1.35 0
AC.VLO.HHZ. 2021-10-26T09:12:49.20 3.0 positive manual Pg 8.09 0
IV.SPS2.HHZ. 2021-10-26T09:12:48.18 3.0 undecidable manual Sn -0.14 0
IV.RCAV.EHZ. 2021-10-26T09:12:43.05 3.0 undecidable manual Sn 1.83 0
IV.CPGN.EHZ. 2021-10-26T09:12:41.68 3.0 undecidable manual Pn 1.45 0
IV.PIPA.HHZ. 2021-10-26T09:12:24.06 3.0 positive manual Pn 1.68 0
IV.MTCE.HHZ. 2021-10-26T09:12:21.81 3.0 undecidable manual Pn 1.2 0
IV.VAGA.HHZ. 2021-10-26T09:12:11.02 3.0 undecidable manual S -1.38 0
IV.MSAG.HHZ. 2021-10-26T09:12:05.56 0.1 positive manual P 60 18.9699 92 0.01 100
IV.APRC.HHZ. 2021-10-26T09:12:05.44 0.3 undecidable manual P 316 19.9689 91 -0.3 70
IV.ICAI.EHZ. 2021-10-26T09:12:04.00 3.0 negative manual P -0.65 0
OT.OT12.EHZ. 2021-10-26T09:12:04.71 0.3 undecidable manual P 88 16.3725 92 -0.31 71
OT.OT03.EHZ. 2021-10-26T09:12:04.09 0.3 undecidable manual P 332 10.5783 93 0.22 73
IV.SGRT.HHZ. 2021-10-26T09:12:04.77 0.1 undecidable manual P 11 14.3745 92 0.15 98
OT.OT06.EHZ. 2021-10-26T09:12:04.07 0.3 undecidable manual P 304 11.5773 92 0.01 76
OT.OT04.EHN. 2021-10-26T09:12:04.60 0.3 undecidable manual P 313 14.7741 92 -0.11 74
OT.OT05.EHZ. 2021-10-26T09:12:03.73 0.3 undecidable manual P 291 9.5793 93 0.06 75
OT.OT07.EHZ. 2021-10-26T09:12:02.12 0.1 undecidable manual P 134 0.999 116 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OT.OT12.EHN. ML:1.5 0.000311 0.32 AML other m 2021-10-26T09:12:08.18
IV.SGRT.HHE. ML:1.4 0.00028985203000000005 0.1792 AML other m 2021-10-26T09:12:09.62
IV.SGRT.HHN. ML:1.4 0.00035191565 1.4368 AML other m 2021-10-26T09:12:09.96
IV.MSAG.HNN. ML:1.7 0.0004970681500000001 0.1984 AML other m 2021-10-26T09:12:10.15
IV.MSAG.HHN. ML:1.4 0.00021874870000000002 0.1984 AML other m 2021-10-26T09:12:10.15
OT.OT12.EHE. ML:1.3 0.00020400000000000003 0.34 AML other m 2021-10-26T09:12:10.60
IV.MSAG.HHE. ML:1.0 0.00009993360500000002 0.4544 AML other m 2021-10-26T09:12:14.07
IV.MSAG.HNE. ML:1.4 0.00024510995 0.4544 AML other m 2021-10-26T09:12:14.07
IV.APRC.HNE. ML:1.4 0.0002245144 0.576 AML other m 2021-10-26T09:12:14.83
IV.APRC.HHE. ML:1.4 0.0002315 0.56 AML other m 2021-10-26T09:12:14.83
IV.APRC.HHN. ML:1.4 0.00024142365 1.6224 AML other m 2021-10-26T09:12:14.14
IV.APRC.HNN. ML:2.0 0.0009456019999999999 0.608 AML other m 2021-10-26T09:12:21.82
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