Earthquake with magnitude of Md 1.1 on date 26-07-2020 and time 04:52:12 (Italy) in region 8 km E San Giovanni Rotondo (FG)

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

  • 26-07-2020 02:52:12 (UTC)
  • 26-07-2020 04:52:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.69, 15.82 at 25 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 8 27184 27184
Manfredonia FG 11 57279 84463
Monte Sant'Angelo FG 12 12657 97120
San Marco in Lamis FG 15 13831 110951
Cagnano Varano FG 16 7330 118281
Carpino FG 18 4182 122463
Rignano Garganico FG 19 2117 124580
Mattinata FG 20 6310 130890

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km NW of Manfredonia (57279 inhabitants)
34 Km NE of Foggia (151991 inhabitants)
36 Km E of San Severo (53905 inhabitants)
47 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)
76 Km NW of Bisceglie (55422 inhabitants)
85 Km NW of Molfetta (59874 inhabitants)
97 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
Md 1.1 2020-07-26
41.69 15.81 25 2020-07-26
Sala Sismica INGV-Roma 81352041
Preferred location and magnitude until now.
Origin information


Field Value
Time (UTC) 2020-07-26 02:52:12 ± 0.13
Latitude 41.69 ± 0.01
Longitude 15.81 ± 0.00
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81352041


Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1423
Semi-minor axis of confidence ellipse (meter) 238
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 2
Circular confidence region, given by single value of horizontal uncertainty (meter) 1420
Confidence level of the uncertainty (%) 68


Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 191
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.08
Epicentral distance of station closest to the epicenter (degree) 0.07554
Epicentral distance of station farthest from the epicenter (degree) 0.21494
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information


Field Value
Value 1.1
Uncertainty 0.5
Num. used stations 3
Type of magnitude Md
Reference to an origin 81352041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-26 03:01:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.APRC.HHZ. 2020-07-26T02:52:22.57 0.6 undecidable manual S 290 0.2149 131 0 49
OT.OT05.EHZ. 2020-07-26T02:52:21.51 0.6 undecidable manual S 261 0.161 140 0.06 49
IV.SGRT.HHZ. 2020-07-26T02:52:20.19 0.6 undecidable manual S 322 0.0872 157 -0.11 49
IV.MSAG.HHZ. 2020-07-26T02:52:20.20 0.6 undecidable manual S 70 0.0755 159 0.03 50
IV.APRC.HHZ. 2020-07-26T02:52:18.28 0.6 positive manual P 290 0.2149 131 0.11 48
OT.OT05.EHZ. 2020-07-26T02:52:17.40 0.3 positive manual P 261 0.161 140 -0.12 72
IV.MSAG.HHZ. 2020-07-26T02:52:16.79 0.1 undecidable manual P 70 0.0755 159 0 100
IV.SGRT.HHZ. 2020-07-26T02:52:16.89 0.1 positive manual P 322 0.0872 157 0.03 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSAG.HHZ. Md:1.2 10 END duration s
IV.SGRT.HHZ. Md:1.1 9 END duration s
OT.OT05.EHZ. Md:1.1 8 END duration s
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