Earthquake with magnitude of Md 1.4 on date 06-10-2021 and time 09:55:15 (UTC) in region 9 km W Monte Sant'Angelo (FG)

A magnitude Md 1.4 earthquake occured in region: 9 km W Monte Sant'Angelo (FG), on

  • 06-10-2021 09:55:15 (UTC)
  • 06-10-2021 11:55:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.709, 15.848 at 23 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
Monte Sant'Angelo FG 9 12657 12657
San Giovanni Rotondo FG 10 27184 39841
Manfredonia FG 11 57279 97120
Cagnano Varano FG 15 7330 104450
Carpino FG 15 4182 108632
Mattinata FG 17 6310 114942
San Marco in Lamis FG 17 13831 128773

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km NW of Manfredonia (57279 inhabitants)
37 Km NE of Foggia (151991 inhabitants)
39 Km E of San Severo (53905 inhabitants)
49 Km N of Cerignola (58396 inhabitants)
56 Km NW of Barletta (94814 inhabitants)
65 Km NW of Andria (100440 inhabitants)
68 Km NW of Trani (56217 inhabitants)
75 Km NW of Bisceglie (55422 inhabitants)
84 Km NW of Molfetta (59874 inhabitants)
97 Km NW of Bitonto (55540 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
Md 1.4 2021-10-06
09:55:15
41.7088 15.8475 23 2021-10-06
10:12:33
Sala Sismica INGV-Roma 96285681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-06 09:55:15 ± 0.24
Latitude 41.7088 ± 0.0072
Longitude 15.8475 ± 0.0145
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96285681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1032
Semi-minor axis of confidence ellipse (meter) 586
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 274
Circular confidence region, given by single value of horizontal uncertainty (meter) 1030
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.69787
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 6
Magnitude information

Md:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 4
Type of magnitude Md
Reference to an origin 96285681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-06 10:12:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MRVN.HHZ. 2021-10-06T09:55:29.36 0.6 undecidable manual P 158 0.6979 100 0.44 40
OT.OT05.EHZ. 2021-10-06T09:55:24.98 0.3 undecidable manual S 255 0.1898 132 0.14 72
OT.OT14.EHZ. 2021-10-06T09:55:24.99 0.3 undecidable manual S 13 0.1925 131 0.07 72
IV.CDRU.HHZ. 2021-10-06T09:55:23.23 3.0 undecidable manual P 0.41 0
IV.MSAG.HHZ. 2021-10-06T09:55:22.89 0.3 undecidable manual S 86 0.0468 166 0.3 71
OT.OT12.EHZ. 2021-10-06T09:55:22.87 0.3 undecidable manual S 150 0.089 154 -0.16 72
IV.APRC.HHZ. 2021-10-06T09:55:21.56 0.3 undecidable manual P 282 0.232 125 0.14 70
IX.RSF3.HHZ.02 2021-10-06T09:55:21.41 3.0 undecidable manual P -2.99 0
OT.OT05.EHZ. 2021-10-06T09:55:20.61 0.3 undecidable manual P 255 0.1898 132 -0.24 70
OT.OT14.EHZ. 2021-10-06T09:55:20.74 0.3 undecidable manual P 13 0.1925 131 -0.15 72
OT.OT12.EHZ. 2021-10-06T09:55:19.48 0.3 undecidable manual P 150 0.089 154 -0.32 70
IV.MSAG.HHZ. 2021-10-06T09:55:19.51 0.1 undecidable manual P 86 0.0468 166 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSAG.HHZ. Md:1.4 13 END duration s
OT.OT12.EHZ. Md:1.4 12 END duration s
OT.OT05.EHZ. Md:1.3 10 END duration s
OT.OT14.EHZ. Md:1.8 20 END duration s
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