Earthquake with magnitude of ML 1.1 on date 14-04-2020 and time 09:51:42 (Italy) in region 8 km E San Giovanni Rotondo (FG)

A magnitude ML 1.1 earthquake occured in region: 8 km E San Giovanni Rotondo (FG), on

  • 14-04-2020 07:51:42 (UTC)
  • 14-04-2020 09:51:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.68, 15.82 at 18 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 9 27184 27184
Manfredonia FG 10 57279 84463
Monte Sant'Angelo FG 12 12657 97120
San Marco in Lamis FG 16 13831 110951
Cagnano Varano FG 17 7330 118281
Carpino FG 19 4182 122463
Rignano Garganico FG 19 2117 124580
Mattinata FG 20 6310 130890

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km NW of Manfredonia (57279 inhabitants)
33 Km NE of Foggia (151991 inhabitants)
37 Km E of San Severo (53905 inhabitants)
46 Km N of Cerignola (58396 inhabitants)
55 Km NW of Barletta (94814 inhabitants)
64 Km NW of Andria (100440 inhabitants)
67 Km NW of Trani (56217 inhabitants)
75 Km NW of Bisceglie (55422 inhabitants)
84 Km NW of Molfetta (59874 inhabitants)
96 Km NW of Bitonto (55540 inhabitants)
Recent and historical Seismicity
Seismic hazard
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 ( 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
Rev 100 ML 1.1 2020-04-14
41.68 15.82 18 2020-04-14
Sala Sismica INGV-Roma 78189991
Preferred location and magnitude until now.
Origin information


Field Value
Time (UTC) 2020-04-14 07:51:42 ± 0.09
Latitude 41.68 ± 0.01
Longitude 15.82 ± 0.00
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78189991


Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 583
Semi-minor axis of confidence ellipse (meter) 285
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 358
Circular confidence region, given by single value of horizontal uncertainty (meter) 580
Confidence level of the uncertainty (%) 68


Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 220
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.07
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.22213
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 4
Magnitude information


Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 78189991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-14 08:09:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.APRC.HHZ. 2020-04-14T07:51:52.08 0.1 undecidable manual S 291 0.2221 116 0.08 96
IV.OT05.EHZ. 2020-04-14T07:51:50.72 3.0 undecidable manual S 0
OT.OT04.EHE. 2020-04-14T07:51:50.93 0.3 undecidable manual S 283 0.1844 122 -0.09 72
IV.SGRT.HHZ. 2020-04-14T07:51:49.09 0.1 undecidable manual S 323 0.0953 144 0 100
IV.MSAG.HHZ. 2020-04-14T07:51:48.78 0.1 undecidable manual S 63 0.0737 151 0.03 99
IV.APRC.HHZ. 2020-04-14T07:51:47.92 0.3 undecidable manual P 291 0.2221 116 -0.06 72
OT.OT04.EHE. 2020-04-14T07:51:47.47 0.1 undecidable manual P 283 0.1844 122 0.06 97
IV.SGRT.HHZ. 2020-04-14T07:51:46.27 0.1 undecidable manual P 323 0.0953 144 -0.03 99
IV.MSAG.HHZ. 2020-04-14T07:51:46.07 0.1 undecidable manual P 63 0.0737 151 -0.03 100
IV.OT05.EHZ. 2020-04-14T07:51:43.06 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSAG.HHE. ML:0.9 6.3173835E-5 0.6208 AML other m 2020-04-14T07:51:48.93
IV.MSAG.HHN. ML:1.1 9.9780705E-5 0.6976 AML other m 2020-04-14T07:51:49.55
IV.MSAG.HNE. ML:1.2 0.000146891545 0.6016 AML other m 2020-04-14T07:51:48.94
IX.MNT3.HNE.01 ML:3 0.0007094068 0.064 AML other m 2020-04-14T07:52:05.40
IX.MNT3.HHE.02 ML:3 0.0008873918 0.064 AML other m 2020-04-14T07:52:05.44
IX.MNT3.HHN.02 ML:3 0.00070452285 0.064 AML other m 2020-04-14T07:52:05.61
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download