Earthquake with magnitude of ML 1.6 on date 29-09-2021 and time 18:27:21 (UTC) in region 3 km NE San Giovanni Rotondo (FG)

A magnitude ML 1.6 earthquake occured in region: 3 km NE San Giovanni Rotondo (FG), on

  • 29-09-2021 18:27:21 (UTC)
  • 29-09-2021 20:27:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.732, 15.754 at 26 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 3 27184 27184
San Marco in Lamis FG 10 13831 41015
Cagnano Varano FG 11 7330 48345
Rignano Garganico FG 15 2117 50462
Carpino FG 15 4182 54644
Monte Sant'Angelo FG 17 12657 67301
Manfredonia FG 18 57279 124580
San Nicandro Garganico FG 20 15566 140146

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NW of Manfredonia (57279 inhabitants)
31 Km E of San Severo (53905 inhabitants)
35 Km NE of Foggia (151991 inhabitants)
53 Km N of Cerignola (58396 inhabitants)
63 Km NW of Barletta (94814 inhabitants)
72 Km NW of Andria (100440 inhabitants)
75 Km NW of Trani (56217 inhabitants)
83 Km NW of Bisceglie (55422 inhabitants)
92 Km NW of Molfetta (59874 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.6 2021-09-29
18:27:21
41.732 15.7542 26 2021-09-29
18:51:23
Sala Sismica INGV-Roma 96040941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-29 18:27:21 ± 0.1
Latitude 41.7320 ± 0.0036
Longitude 15.7542 ± 0.0036
Depth (km) 26 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96040941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 335
Semi-minor axis of confidence ellipse (meter) 254
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 300
Circular confidence region, given by single value of horizontal uncertainty (meter) 330
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.43078
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 96040941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-29 18:51:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CDRU.HHZ. 2021-09-29T18:27:46.99 3.0 undecidable manual Pg 3.17 0
IX.PGN3.HHZ.02 2021-09-29T18:27:42.05 3.0 undecidable manual Pn 0.04 0
IV.TREM.HHZ. 2021-09-29T18:27:37.20 0.3 undecidable manual S 335 0.4308 112 -0.04 69
IV.MRVN.HHZ. 2021-09-29T18:27:35.81 3.0 positive manual P -0.44 0
OT.OT14.EHZ. 2021-09-29T18:27:31.29 0.3 undecidable manual S 35 0.1996 135 -0.18 71
OT.OT05.EHZ. 2021-09-29T18:27:30.13 0.3 undecidable manual S 237 0.1349 147 -0.11 74
OT.OT06.EHN. 2021-09-29T18:27:30.17 0.1 undecidable manual S 249 0.1277 148 0.03 98
OT.OT12.EHZ. 2021-09-29T18:27:30.46 0.3 undecidable manual S 131 0.152 143 -0.08 73
IV.TREM.HHZ. 2021-09-29T18:27:30.31 0.1 undecidable manual P 335 0.4308 112 -0.15 90
OT.OT04.EHZ. 2021-09-29T18:27:30.13 0.3 undecidable manual S 265 0.1304 148 -0.04 75
IV.APRC.HHZ. 2021-09-29T18:27:30.70 0.1 undecidable manual S 279 0.1592 142 0.03 98
OT.OT13.EHE. 2021-09-29T18:27:29.76 0.3 undecidable manual P 65 0.3498 118 0.55 64
IV.MSAG.HHZ. 2021-09-29T18:27:29.97 0.1 undecidable manual S 100 0.1178 151 -0.01 99
OT.OT03.EHN. 2021-09-29T18:27:29.60 0.1 undecidable manual S 256 0.08 159 0.09 98
OT.OT07.EHN. 2021-09-29T18:27:29.84 0.1 undecidable manual S 193 0.1133 151 -0.08 99
IV.SGRT.HHZ. 2021-09-29T18:27:29.19 0.1 undecidable manual S 341 0.0243 174 0.07 100
OT.OT14.EHZ. 2021-09-29T18:27:27.07 0.3 undecidable manual P 35 0.1996 135 -0.05 72
OT.OT07.EHN. 2021-09-29T18:27:26.15 0.1 undecidable manual P 193 0.1133 151 -0.09 98
OT.OT05.EHZ. 2021-09-29T18:27:26.36 0.1 undecidable manual P 237 0.1349 147 -0.06 99
OT.OT06.EHN. 2021-09-29T18:27:26.34 0.1 undecidable manual P 249 0.1277 148 -0.01 100
OT.OT12.EHZ. 2021-09-29T18:27:26.43 0.1 positive manual P 131 0.152 143 -0.16 96
OT.OT04.EHZ. 2021-09-29T18:27:26.43 0.1 undecidable manual P 265 0.1304 148 0.05 99
IV.MSAG.HHZ. 2021-09-29T18:27:26.27 0.1 undecidable manual P 100 0.1178 151 0 100
IV.APRC.HHZ. 2021-09-29T18:27:26.74 0.1 negative manual P 279 0.1592 142 0.08 98
OT.OT03.EHN. 2021-09-29T18:27:26.02 0.1 undecidable manual P 256 0.08 159 0.03 100
IV.SGRT.HHZ. 2021-09-29T18:27:25.90 0.1 undecidable manual P 341 0.0243 174 0.13 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SGRT.HHE. ML:2 0.0005715 0.14 AML other m 2021-09-29T18:27:29.39
IV.SGRT.HHN. ML:1.8 0.000393 0.14 AML other m 2021-09-29T18:27:29.47
IV.MSAG.HHE. ML:0.9 4.687095E-5 0.0896 AML other m 2021-09-29T18:27:30.36
IV.MSAG.HHN. ML:1.2 9.340084E-5 0.1024 AML other m 2021-09-29T18:27:30.41
IV.APRC.HHN. ML:1.6 0.00021253875 0.1152 AML other m 2021-09-29T18:27:31.80
IV.APRC.HHE. ML:1.5 0.00016095255 0.1792 AML other m 2021-09-29T18:27:32.33
IV.TREM.HHN. ML:1.8 0.000143 0.26 AML other m 2021-09-29T18:27:37.60
IV.TREM.HHE. ML:1.6 8.3174555E-5 0.4736 AML other m 2021-09-29T18:27:38.83
IV.MSAG.HNE. ML:1.3 0.0001157704 0.0896 AML other m 2021-09-29T18:27:30.36
IV.MSAG.HNN. ML:1.6 0.0002047309 0.0768 AML other m 2021-09-29T18:27:30.42
OT.OT05.EHE. ML:0 6.034631E-6 0.1536 AML other m 2021-09-29T18:27:30.90
OT.OT05.EHN. ML:1.4 0.000114779605 0.192 AML other m 2021-09-29T18:27:30.87
OT.OT12.EHE. ML:0.8 3.5226725E-5 0.128 AML other m 2021-09-29T18:27:32.19
OT.OT12.EHN. ML:0.8 3.4596415E-5 1.1008 AML other m 2021-09-29T18:27:30.44
IV.APRC.HNE. ML:1.5 0.0001523952 0.1792 AML other m 2021-09-29T18:27:32.42
IV.APRC.HNN. ML:2 0.00053209685 0.9344 AML other m 2021-09-29T18:27:30.82
IV.TREM.HNE. ML:1.7 0.00010948764 0.4736 AML other m 2021-09-29T18:27:37.64
IV.TREM.HNN. ML:1.7 0.000127025195 0.2816 AML other m 2021-09-29T18:27:37.46
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