Earthquake with magnitude of ML 1.8 on date 16-10-2021 and time 21:44:39 (Italy) in region 8 km NW Manfredonia (FG)

A magnitude ML 1.8 earthquake occured in region: 8 km NW Manfredonia (FG), on

  • 16-10-2021 19:44:39 (UTC)
  • 16-10-2021 21:44:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.688, 15.856 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
Manfredonia FG 8 57279 57279
Monte Sant'Angelo FG 9 12657 69936
San Giovanni Rotondo FG 11 27184 97120
Mattinata FG 17 6310 103430
Cagnano Varano FG 17 7330 110760
Carpino FG 18 4182 114942
San Marco in Lamis FG 18 13831 128773

Municipalities with at least 50000 inhabitants

An earthquake occurred to
8 Km NW of Manfredonia (57279 inhabitants)
36 Km NE of Foggia (151991 inhabitants)
39 Km E of San Severo (53905 inhabitants)
47 Km N of Cerignola (58396 inhabitants)
54 Km NW of Barletta (94814 inhabitants)
63 Km NW of Andria (100440 inhabitants)
66 Km NW of Trani (56217 inhabitants)
73 Km NW of Bisceglie (55422 inhabitants)
82 Km NW of Molfetta (59874 inhabitants)
95 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 the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.8 2021-10-16
19:44:39
41.688 15.8558 20 2021-10-16
19:54:33
Sala Sismica INGV-Roma 96659711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-16 19:44:39 ± 0.12
Latitude 41.6880 ± 0.0063
Longitude 15.8558 ± 0.0048
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 96659711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 535
Semi-minor axis of confidence ellipse (meter) 427
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 338
Circular confidence region, given by single value of horizontal uncertainty (meter) 540
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.54409
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 18
Type of magnitude ML
Reference to an origin 96659711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-16 19:54:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MILN.HHZ. 2021-10-16T19:46:29.77 3.0 undecidable manual Pg 16.530001 0
MN.TRI.HHZ. 2021-10-16T19:46:29.09 3.0 undecidable manual Sn -9.99 0
IV.EUCT.HNZ. 2021-10-16T19:46:23.83 3.0 undecidable manual Pg 12.04 0
IV.ZEN8.EHZ. 2021-10-16T19:46:15.13 3.0 undecidable manual Pg 11.36 0
IV.NARO.HHZ. 2021-10-16T19:46:12.70 3.0 undecidable manual Sg 1.64 0
IV.SRES.HHZ. 2021-10-16T19:45:58.95 3.0 undecidable manual Sg 2.15 0
IV.RMP.HHZ. 2021-10-16T19:45:50.91 3.0 undecidable manual Sn -0.66 0
IV.LAV9.HNZ. 2021-10-16T19:45:49.21 3.0 undecidable manual Sn -2.29 0
IV.HAGA.HHZ. 2021-10-16T19:45:47.32 3.0 undecidable manual Pn -0.23 0
SL.BOJS.BHZ. 2021-10-16T19:45:43.37 3.0 negative manual Pg 0.75 0
IV.VENT.EHZ. 2021-10-16T19:45:40.04 3.0 undecidable manual Sn -2.36 0
IV.IOCA.HHZ. 2021-10-16T19:45:38.45 3.0 undecidable manual Sg 3.44 0
IV.PE3.EHZ. 2021-10-16T19:45:30.69 3.0 undecidable manual Pn -2.19 0
IV.RCAV.EHZ. 2021-10-16T19:45:20.02 3.0 undecidable manual Pg 1.88 0
IV.LRP.EHZ. 2021-10-16T19:45:12.79 3.0 negative manual Pg 1.43 0
IV.VVLD.HHZ. 2021-10-16T19:45:12.17 3.0 negative manual Pg 0.88 0
IV.POFI.HHZ. 2021-10-16T19:45:11.43 3.0 positive manual Pg 1.3 0
IV.INTR.HHZ. 2021-10-16T19:45:10.79 3.0 undecidable manual Pg 1.87 0
IV.CERA.HHZ. 2021-10-16T19:45:07.46 3.0 negative manual P 0.56 0
IV.MIDA.HHZ. 2021-10-16T19:45:06.32 3.0 undecidable manual P 1.82 0
IV.RNI2.HHZ. 2021-10-16T19:45:06.02 3.0 positive manual P 0.42 0
IV.MRVN.HHZ. 2021-10-16T19:45:02.56 3.0 undecidable manual S -1.3 0
IV.MTMR.EHZ. 2021-10-16T19:44:58.39 3.0 undecidable manual P -1.18 0
IV.MRVN.HHZ. 2021-10-16T19:44:52.70 3.0 positive manual P -1.04 0
IV.MELA.HHZ. 2021-10-16T19:44:50.39 0.3 undecidable manual P 272 0.5441 101 0.42 62
OT.OT13.EHN. 2021-10-16T19:44:50.91 0.3 undecidable manual S 51 0.3085 111 -0.28 67
IV.APRC.HHZ. 2021-10-16T19:44:49.34 0.3 undecidable manual S 287 0.2437 118 -0.08 71
OT.OT06.EHE. 2021-10-16T19:44:48.16 0.1 undecidable manual S 269 0.1952 125 -0.05 97
OT.OT14.EHZ. 2021-10-16T19:44:48.58 0.3 undecidable manual S 10 0.2122 123 -0.04 71
OT.OT04.EHE. 2021-10-16T19:44:48.44 0.3 undecidable manual S 279 0.2077 123 -0.08 72
OT.OT05.EHZ. 2021-10-16T19:44:47.79 0.1 undecidable manual S 261 0.1916 126 -0.32 92
OT.OT03.EHE. 2021-10-16T19:44:47.36 0.3 undecidable manual S 279 0.1556 133 0.06 73
IV.SGRT.HHZ. 2021-10-16T19:44:46.44 0.3 undecidable manual S 309 0.107 145 0.09 74
OT.OT07.EHE. 2021-10-16T19:44:46.51 0.3 undecidable manual S 237 0.1214 141 -0.1 73
OT.OT13.EHN. 2021-10-16T19:44:45.81 0.3 undecidable manual P 51 0.3085 111 -0.27 68
OT.OT12.EHZ. 2021-10-16T19:44:45.75 0.1 undecidable manual S 145 0.0683 156 -0.03 100
IV.MSAG.HHZ. 2021-10-16T19:44:45.86 0.3 undecidable manual S 59 0.0468 163 0.3 71
IV.APRC.HHZ. 2021-10-16T19:44:45.04 0.1 undecidable manual P 287 0.2437 118 -0.03 96
OT.OT05.EHZ. 2021-10-16T19:44:44.18 0.1 undecidable manual P 261 0.1916 126 -0.13 96
OT.OT06.EHE. 2021-10-16T19:44:44.33 0.1 undecidable manual P 269 0.1952 125 -0.03 97
OT.OT14.EHZ. 2021-10-16T19:44:44.69 0.1 undecidable manual P 10 0.2122 123 0.09 96
OT.OT04.EHE. 2021-10-16T19:44:44.52 0.3 undecidable manual P 279 0.2077 123 -0.02 73
IV.SGRT.HHZ. 2021-10-16T19:44:43.42 0.1 undecidable manual P 309 0.107 145 0.14 97
OT.OT07.EHE. 2021-10-16T19:44:43.45 0.1 undecidable manual P 237 0.1214 141 0.01 98
OT.OT03.EHE. 2021-10-16T19:44:43.96 0.3 undecidable manual P 279 0.1556 133 0.12 72
IV.MSAG.HHZ. 2021-10-16T19:44:43.08 0.1 undecidable manual P 59 0.0468 163 0.25 96
OT.OT12.EHZ. 2021-10-16T19:44:42.95 0.1 undecidable manual P 145 0.0683 156 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OT.OT12.EHN. ML:1.4 0.000173 0.14 AML other m 2021-10-16T19:44:45.93
IV.MSAG.HHE. ML:1.1 0.000101210705 0.1024 AML other m 2021-10-16T19:44:45.96
IV.MSAG.HHN. ML:1.2 0.0001235 0.08 AML other m 2021-10-16T19:44:46.14
OT.OT12.EHE. ML:0.9 6.3636815E-5 0.1152 AML other m 2021-10-16T19:44:45.00
IV.SGRT.HHE. ML:1.1 9.624883E-5 0.1152 AML other m 2021-10-16T19:44:46.66
IV.SGRT.HHN. ML:1.6 0.000281 0.1 AML other m 2021-10-16T19:44:46.76
IV.APRC.HHE. ML:1.4 0.0001165 0.14 AML other m 2021-10-16T19:44:49.53
IV.APRC.HHN. ML:1.5 0.00014295955 0.0896 AML other m 2021-10-16T19:44:50.04
IV.RNI2.HHE. ML:3 0.00056406945 0.1792 AML other m 2021-10-16T19:45:08.26
IV.MIDA.HHN. ML:2.9 0.0005169631 0.064 AML other m 2021-10-16T19:45:08.06
IV.RNI2.HHN. ML:3.8 0.003435 0.16 AML other m 2021-10-16T19:45:08.10
IV.MIDA.HHE. ML:3 0.000549 0.06 AML other m 2021-10-16T19:45:08.14
IV.CERA.HHN. ML:2.2 8.415E-5 0.24 AML other m 2021-10-16T19:45:12.38
IV.CERA.HHE. ML:2 5.626418E-5 0.4352 AML other m 2021-10-16T19:45:12.54
IV.INTR.HHE. ML:2.4 0.0001195 1.86 AML other m 2021-10-16T19:45:16.94
IV.INTR.HHN. ML:2.4 0.00011829773 0.1664 AML other m 2021-10-16T19:45:17.08
IV.VVLD.HHE. ML:2 3.564292E-5 0.256 AML other m 2021-10-16T19:45:19.66
IV.VVLD.HHN. ML:2.1 4.5141755E-5 0.2176 AML other m 2021-10-16T19:45:19.03
IV.POFI.HHN. ML:1.6 1.2590285E-5 2.2272 AML other m 2021-10-16T19:45:50.46
IV.MSAG.HNE. ML:1.8 0.00048218315 1.024 AML other m 2021-10-16T19:44:46.43
IV.MSAG.HNN. ML:1.7 0.0004080062 0.9472 AML other m 2021-10-16T19:44:44.79
OT.OT05.EHE. ML:0 3.86406975E-6 0.0896 AML other m 2021-10-16T19:44:48.75
OT.OT05.EHN. ML:1.4 0.000128283315 0.1792 AML other m 2021-10-16T19:44:48.19
IV.APRC.HNE. ML:1.4 0.00012448006 0.2688 AML other m 2021-10-16T19:44:49.60
IV.MIDA.HNE. ML:2.9 0.00049918125 0.2176 AML other m 2021-10-16T19:45:08.72
IV.MIDA.HNN. ML:2.9 0.00046482765 0.0512 AML other m 2021-10-16T19:45:08.17
IV.CERA.HNE. ML:2.2 8.062876E-5 0.2432 AML other m 2021-10-16T19:45:12.74
IV.CERA.HNN. ML:2.2 7.9739225E-5 0.2304 AML other m 2021-10-16T19:45:12.38
IV.POFI.HNE. ML:2.6 0.0001358144 0.896 AML other m 2021-10-16T19:45:29.41
IV.POFI.HNN. ML:2.6 0.0001462766 0.9856 AML other m 2021-10-16T19:45:51.16
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