Earthquake with magnitude of ML 1.5 on date 21-07-2020 and time 15:11:50 (Italy) in region 5 km SE Cagnano Varano (FG)

A magnitude ML 1.5 earthquake occured in region: 5 km SE Cagnano Varano (FG), on

  • 21-07-2020 13:11:50 (UTC)
  • 21-07-2020 15:11:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.8, 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
Cagnano Varano FG 5 7330 7330
Carpino FG 6 4182 11512
San Giovanni Rotondo FG 12 27184 38696
Ischitella FG 14 4432 43128
Monte Sant'Angelo FG 15 12657 55785
Rodi Garganico FG 16 3693 59478
Vico del Gargano FG 16 7766 67244
San Marco in Lamis FG 18 13831 81075

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of Manfredonia (57279 inhabitants)
38 Km E of San Severo (53905 inhabitants)
44 Km NE of Foggia (151991 inhabitants)
59 Km N of Cerignola (58396 inhabitants)
65 Km NW of Barletta (94814 inhabitants)
75 Km NW of Andria (100440 inhabitants)
76 Km NW of Trani (56217 inhabitants)
84 Km NW of Bisceglie (55422 inhabitants)
92 Km NW of Molfetta (59874 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 1.5 2020-07-21
13:11:50
41.8 15.82 25 2020-07-21
13:20:03
Sala Sismica INGV-Roma 81214881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-21 13:11:50 ± 0.21
Latitude 41.80 ± 0.01
Longitude 15.82 ± 0.01
Depth (km) 25 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81214881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 797
Semi-minor axis of confidence ellipse (meter) 663
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 20
Circular confidence region, given by single value of horizontal uncertainty (meter) 800
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.5252
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 81214881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-21 13:20:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SGG.HHZ. 2020-07-21T13:12:28.52 3.0 undecidable manual S 1.34 0
IV.PZUN.HHZ. 2020-07-21T13:12:11.67 3.0 negative manual P -0.4 0
IV.MELA.HHZ. 2020-07-21T13:12:09.31 0.3 undecidable manual S 260 0.5252 107 0.54 60
IV.TREM.HHZ. 2020-07-21T13:12:05.23 0.6 undecidable manual S 325 0.4002 113 -0.05 47
IV.MELA.HHZ. 2020-07-21T13:12:01.07 0.1 positive manual P 260 0.5252 107 0.16 90
OT.OT05.EHZ. 2020-07-21T13:12:00.11 0.6 undecidable manual S 230 0.2131 132 -0.42 45
IV.APRC.HHZ. 2020-07-21T13:12:00.45 0.6 undecidable manual S 260 0.2104 132 -0.04 50
OT.OT06.EHZ. 2020-07-21T13:12:00.13 0.6 undecidable manual S 237 0.2023 133 -0.17 48
IV.MSAG.HHZ. 2020-07-21T13:11:58.89 0.6 undecidable manual S 142 0.107 152 0.32 48
IV.TREM.HHZ. 2020-07-21T13:11:58.82 1.0 positive manual P 325 0.4002 113 -0.08 24
IV.SGRT.HHZ. 2020-07-21T13:11:58.00 0.6 undecidable manual S 234 0.071 161 -0.14 49
OT.OT13.EHZ. 2020-07-21T13:11:57.06 0.3 undecidable manual P 72 0.2797 123 -0.02 72
IV.APRC.HHZ. 2020-07-21T13:11:56.12 0.3 positive manual P 260 0.2104 132 -0.01 74
OT.OT03.EHZ. 2020-07-21T13:11:55.52 0.1 undecidable manual P 237 0.1529 142 0.06 99
IV.MSAG.HHZ. 2020-07-21T13:11:55.16 0.1 negative manual P 142 0.107 152 0.14 99
OT.OT05.EHZ. 2020-07-21T13:11:55.82 0.1 positive manual P 230 0.2131 132 -0.34 92
OT.OT06.EHZ. 2020-07-21T13:11:55.83 0.1 undecidable manual P 237 0.2023 133 -0.19 95
IV.SGRT.HHZ. 2020-07-21T13:11:54.88 0.1 positive manual P 234 0.071 161 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.APRC.HHN. ML:1.4 0.00010375 0.86 AML other m 2020-07-21T13:11:56.44
IV.SGRT.HHE. ML:1.5 0.000193 0.16 AML other m 2020-07-21T13:11:58.27
IV.SGRT.HHN. ML:1.6 0.0002235 0.16 AML other m 2020-07-21T13:11:58.27
IV.MSAG.HHN. ML:1.4 0.000151 0.48 AML other m 2020-07-21T13:11:59.06
IV.MSAG.HHE. ML:1.1 6.96E-5 0.16 AML other m 2020-07-21T13:11:59.24
OT.OT05.EHN. ML:1.6 0.0001585 0.92 AML other m 2020-07-21T13:12:00.28
OT.OT05.EHE. ML:1.6 0.000157 0.38 AML other m 2020-07-21T13:12:00.63
IV.APRC.HHE. ML:1.2 6.365E-5 0.26 AML other m 2020-07-21T13:12:02.63
IV.TREM.HHE. ML:1.7 0.0001225 0.64 AML other m 2020-07-21T13:12:05.70
IV.TREM.HHN. ML:1.6 9.33E-5 1.42 AML other m 2020-07-21T13:12:07.71
IV.MELA.HHE. ML:1.7 0.00010155 0.56 AML other m 2020-07-21T13:12:09.75
IV.MELA.HHN. ML:1.6 8.525E-5 0.36 AML other m 2020-07-21T13:12:09.88
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