Earthquake with magnitude of ML 1.4 on date 13-09-2021 and time 02:05:16 (UTC) in region 4 km SW San Giovanni Rotondo (FG)

A magnitude ML 1.4 earthquake occured in region: 4 km SW San Giovanni Rotondo (FG), on

  • 13-09-2021 02:05:16 (UTC)
  • 13-09-2021 04:05:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.686, 15.695 at 20 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 4 27184 27184
San Marco in Lamis FG 6 13831 41015
Rignano Garganico FG 9 2117 43132
Cagnano Varano FG 17 7330 50462
Manfredonia FG 20 57279 107741

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km W of Manfredonia (57279 inhabitants)
26 Km E of San Severo (53905 inhabitants)
28 Km NE of Foggia (151991 inhabitants)
50 Km NW of Cerignola (58396 inhabitants)
63 Km NW of Barletta (94814 inhabitants)
71 Km NW of Andria (100440 inhabitants)
76 Km NW of Trani (56217 inhabitants)
83 Km NW of Bisceglie (55422 inhabitants)
93 Km NW of Molfetta (59874 inhabitants)
98 Km NE of Benevento (60091 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 1.4 2021-09-13
02:05:16
41.6858 15.6948 20 2021-09-13
02:11:52
Sala Sismica INGV-Roma 95364381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-13 02:05:16 ± 0.09
Latitude 41.6858 ± 0.0054
Longitude 15.6948 ± 0.0036
Depth (km) 20 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95364381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 505
Semi-minor axis of confidence ellipse (meter) 307
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 187
Circular confidence region, given by single value of horizontal uncertainty (meter) 510
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 140
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.41009
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 95364381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-13 02:11:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.COR1.EHZ. 2021-09-13T02:06:45.44 3.0 undecidable manual Sg 3.48 0
IV.BARO.EHZ. 2021-09-13T02:06:37.82 3.0 undecidable manual Sn -2.93 0
IV.GAVE.EHZ. 2021-09-13T02:06:02.05 3.0 undecidable manual Pg 3.66 0
IV.AMUR.HHZ. 2021-09-13T02:05:50.83 3.0 undecidable manual Sn -1.7 0
IV.MCRV.HHZ. 2021-09-13T02:05:49.22 3.0 undecidable manual S -2.31 0
IV.MRVN.HHZ. 2021-09-13T02:05:41.68 3.0 undecidable manual Sn -0.47 0
OT.OT13.EHZ. 2021-09-13T02:05:31.40 0.3 undecidable manual S 62 0.4101 105 -0.12 71
IV.MRVN.HHZ. 2021-09-13T02:05:31.07 3.0 negative manual Pg -0.46 0
IV.SGTA.HHZ. 2021-09-13T02:05:28.62 3.0 undecidable manual P -0.89 0
OT.OT14.EHZ. 2021-09-13T02:05:27.27 0.3 undecidable manual S 37 0.2635 116 -0.17 72
OT.OT12.EHZ. 2021-09-13T02:05:25.00 0.3 undecidable manual S 109 0.1682 131 -0.07 74
OT.OT13.EHZ. 2021-09-13T02:05:25.24 0.6 undecidable manual P 62 0.4101 105 0.04 47
IV.MSAG.HHZ. 2021-09-13T02:05:25.09 0.3 undecidable manual S 81 0.1628 132 0.15 73
IV.APRC.HHZ. 2021-09-13T02:05:24.35 0.3 undecidable manual S 302 0.134 138 0.01 76
OT.OT05.EHZ. 2021-09-13T02:05:23.25 0.3 undecidable manual S 249 0.0737 155 -0.1 74
IV.SGRT.HHZ. 2021-09-13T02:05:23.39 0.3 undecidable manual S 28 0.0782 153 -0.01 76
OT.OT14.EHZ. 2021-09-13T02:05:22.81 0.1 positive manual P 37 0.2635 116 -0.04 98
IV.APRC.HHZ. 2021-09-13T02:05:21.14 0.1 undecidable manual P 302 0.134 138 0.08 99
OT.OT12.EHZ. 2021-09-13T02:05:21.44 0.1 negative manual P 109 0.1682 131 -0.04 99
IV.MSAG.HHZ. 2021-09-13T02:05:21.52 0.3 negative manual P 81 0.1628 132 0.12 74
IV.SGRT.HHZ. 2021-09-13T02:05:20.67 0.3 negative manual P 28 0.0782 153 0.15 74
OT.OT05.EHZ. 2021-09-13T02:05:20.41 0.1 negative manual P 249 0.0737 155 -0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OT.OT05.EHN. ML:1.4 0.0001845 0.42 AML other m 2021-09-13T02:05:23.43
OT.OT05.EHE. ML:0.3 1.438E-5 0.16 AML other m 2021-09-13T02:05:23.57
IV.SGRT.HHE. ML:1.8 0.0004345 0.3 AML other m 2021-09-13T02:05:23.60
IV.SGRT.HHN. ML:1.7 0.0003595 1.74 AML other m 2021-09-13T02:05:23.92
OT.OT12.EHE. ML:1.2 9.535E-5 0.22 AML other m 2021-09-13T02:05:25.15
IV.MSAG.HHE. ML:1.2 9.335E-5 0.2 AML other m 2021-09-13T02:05:25.26
OT.OT12.EHN. ML:1.4 0.00012795 0.12 AML other m 2021-09-13T02:05:25.44
IV.MSAG.HNN. ML:1.9 0.000464 0.18 AML other m 2021-09-13T02:05:25.39
IV.MSAG.HHN. ML:1.5 0.0001985 0.18 AML other m 2021-09-13T02:05:25.39
IV.MSAG.HNE. ML:1.6 0.0002095 0.7 AML other m 2021-09-13T02:05:25.61
IV.APRC.HHN. ML:1.2 0.000117 0.24 AML other m 2021-09-13T02:05:25.53
IV.APRC.HHE. ML:1.3 0.0001225 0.2 AML other m 2021-09-13T02:05:25.65
OT.OT13.EHE. ML:1.8 0.0001715 0.88 AML other m 2021-09-13T02:05:31.93
OT.OT13.EHN. ML:2 0.0002505 1.1 AML other m 2021-09-13T02:05:33.19
IV.SGTA.HHN. ML:1.4 4.27E-5 0.62 AML other m 2021-09-13T02:05:41.38
IV.SGTA.HHE. ML:1.3 3.635E-5 0.86 AML other m 2021-09-13T02:05:41.19
IV.GAVE.EHN. ML:2.2 2.49E-5 0.42 AML other m 2021-09-13T02:06:09.02
IV.GAVE.EHE. ML:2.3 3.6395E-5 0.6 AML other m 2021-09-13T02:06:12.26
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