Earthquake with magnitude of ML 1.7 on date 17-11-2020 and time 08:53:27 (Italy) in region 4 km S San Giovanni Rotondo (FG)

A magnitude ML 1.7 earthquake occured in region: 4 km S San Giovanni Rotondo (FG), on

  • 17-11-2020 07:53:27 (UTC)
  • 17-11-2020 08:53:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.68, 15.73 at 22 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 9 13831 41015
Rignano Garganico FG 12 2117 43132
Manfredonia FG 17 57279 100411
Cagnano Varano FG 17 7330 107741
Monte Sant'Angelo FG 19 12657 120398

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km W of Manfredonia (57279 inhabitants)
28 Km NE of Foggia (151991 inhabitants)
29 Km E of San Severo (53905 inhabitants)
48 Km NW of Cerignola (58396 inhabitants)
61 Km NW of Barletta (94814 inhabitants)
69 Km NW of Andria (100440 inhabitants)
73 Km NW of Trani (56217 inhabitants)
81 Km NW of Bisceglie (55422 inhabitants)
90 Km NW of Molfetta (59874 inhabitants)
100 Km NE of Benevento (60091 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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 1.7 2020-11-17
07:53:27
41.68 15.73 22 2020-11-17
08:10:21
Sala Sismica INGV-Roma 84796701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-17 07:53:27 ± 0.18
Latitude 41.68 ± 0.01
Longitude 15.73 ± 0.02
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84796701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1450
Semi-minor axis of confidence ellipse (meter) 1139
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 276
Circular confidence region, given by single value of horizontal uncertainty (meter) 1450
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.70867
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 84796701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-17 08:10:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MOCL.EHZ. 2020-11-17T07:55:15.27 3.0 undecidable manual Sn 4.46 0
IV.NARO.HHZ. 2020-11-17T07:55:01.58 3.0 undecidable manual Sg 16.129999 0
IV.ATFO.HHZ. 2020-11-17T07:54:58.87 3.0 undecidable manual Sg 16.98 0
IV.FREG.HNZ. 2020-11-17T07:54:53.16 3.0 undecidable manual Pg 18.35 0
IV.ZONE.HHZ. 2020-11-17T07:54:48.28 3.0 undecidable manual Pn 2.96 0
IV.CAFI.HNZ. 2020-11-17T07:54:48.68 3.0 undecidable manual Sn -1.55 0
IV.AGLI.HHZ. 2020-11-17T07:54:47.25 3.0 undecidable manual Pg 14.67 0
IV.ILOS.HNZ. 2020-11-17T07:54:45.35 3.0 undecidable manual Sg 2.73 0
IV.COR1.EHZ. 2020-11-17T07:54:40.63 3.0 undecidable manual Sn 0.29 0
IV.CASP.HHZ. 2020-11-17T07:54:29.16 3.0 undecidable manual Pg 11.77 0
IV.CELB.HHZ. 2020-11-17T07:54:23.83 3.0 undecidable manual Pn 0.28 0
IV.POFI.HHZ. 2020-11-17T07:54:12.58 3.0 undecidable manual Sn 5.55 0
IV.MNTT.EHZ. 2020-11-17T07:53:54.16 3.0 negative manual Pn -1.1 0
IV.PTRJ.HNZ. 2020-11-17T07:53:51.44 3.0 undecidable manual Sn -1.44 0
IV.MRVN.HHZ. 2020-11-17T07:53:51.36 0.3 undecidable manual S 150 0.7087 99 0.27 63
OT.OT13.EHZ. 2020-11-17T07:53:41.84 0.3 undecidable manual S 59 0.393 109 -0.16 69
IV.MRVN.HHZ. 2020-11-17T07:53:41.07 0.6 undecidable manual P 150 0.7087 99 -0.01 44
IV.APRC.HHZ. 2020-11-17T07:53:36.16 0.3 undecidable manual S 300 0.1601 135 0.12 72
IV.CMPR.HHZ. 2020-11-17T07:53:35.68 3.0 positive manual P -5.39 0
OT.OT06.EHE. 2020-11-17T07:53:35.05 0.3 undecidable manual S 275 0.1007 149 0.09 73
OT.OT13.EHZ. 2020-11-17T07:53:35.76 0.3 undecidable manual P 59 0.393 109 -0.08 70
OT.OT03.EHE. 2020-11-17T07:53:34.67 0.3 undecidable manual S 301 0.0683 158 0.12 73
IV.SGRT.HHZ. 2020-11-17T07:53:34.69 0.3 undecidable manual S 8 0.0782 155 0.03 74
OT.OT07.EHE. 2020-11-17T07:53:34.44 0.1 undecidable manual S 187 0.0558 162 0.02 100
OT.OT05.EHZ. 2020-11-17T07:53:34.09 0.6 undecidable manual S 259 0.0962 151 -0.8 39
IV.APRC.HHZ. 2020-11-17T07:53:32.47 0.3 negative manual P 300 0.1601 135 0.07 72
OT.OT06.EHE. 2020-11-17T07:53:32.15 0.3 undecidable manual P 275 0.1007 149 0.38 69
OT.OT07.EHE. 2020-11-17T07:53:31.46 0.1 undecidable manual P 187 0.0558 162 0 100
OT.OT05.EHZ. 2020-11-17T07:53:31.14 0.3 undecidable manual P 259 0.0962 151 -0.59 65
OT.OT03.EHE. 2020-11-17T07:53:31.60 0.3 undecidable manual P 301 0.0683 158 0.07 74
IV.SGRT.HHZ. 2020-11-17T07:53:31.69 0.1 positive manual P 8 0.0782 155 0.09 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SGRT.HHN. ML:1.9 0.000549 0.1 AML other m 2020-11-17T07:53:34.80
IV.SGRT.HHE. ML:1.8 0.00048 0.36 AML other m 2020-11-17T07:53:34.93
IV.APRC.HHE. ML:1.7 0.000274 1.42 AML other m 2020-11-17T07:53:36.98
IV.APRC.HHN. ML:1.7 0.000293 0.6 AML other m 2020-11-17T07:53:36.38
OT.OT13.EHE. ML:1.7 0.00015109978 0.096 AML other m 2020-11-17T07:53:43.18
OT.OT13.EHN. ML:1.9 0.00023853855 0.1792 AML other m 2020-11-17T07:53:42.04
IV.MRVN.HHE. ML:1.4 3.1158315E-5 0.2176 AML other m 2020-11-17T07:53:51.81
IV.MRVN.HHN. ML:1.5 4.1760965E-5 1.4016 AML other m 2020-11-17T07:53:51.79
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download