Earthquake with magnitude of ML 1.4 on date 24-02-2021 and time 21:49:09 (UTC) in region 9 km W Cagnano Varano (FG)

A magnitude ML 1.4 earthquake occured in region: 9 km W Cagnano Varano (FG), on

  • 24-02-2021 21:49:09 (UTC)
  • 24-02-2021 22:49:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.81, 15.67 at 32 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 9 7330 7330
San Nicandro Garganico FG 9 15566 22896
San Marco in Lamis FG 11 13831 36727
San Giovanni Rotondo FG 12 27184 63911
Rignano Garganico FG 16 2117 66028
Carpino FG 16 4182 70210
Apricena FG 19 13328 83538

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NE of San Severo (53905 inhabitants)
29 Km NW of Manfredonia (57279 inhabitants)
40 Km N of Foggia (151991 inhabitants)
63 Km NW of Cerignola (58396 inhabitants)
74 Km NW of Barletta (94814 inhabitants)
83 Km NW of Andria (100440 inhabitants)
86 Km NW of Trani (56217 inhabitants)
94 Km NW of Bisceglie (55422 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 1.4 2021-02-24
21:49:09
41.81 15.67 32 2021-02-24
21:57:24
Sala Sismica INGV-Roma 87459291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-24 21:49:09 ± 0.34
Latitude 41.81 ± 0.02
Longitude 15.67 ± 0.01
Depth (km) 32 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87459291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1514
Semi-minor axis of confidence ellipse (meter) 887
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 5
Circular confidence region, given by single value of horizontal uncertainty (meter) 1510
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 168
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.07824
Epicentral distance of station farthest from the epicenter (degree) 0.41549
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 87459291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-24 21:57:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MELA.HHZ. 2021-02-24T21:49:25.84 0.3 undecidable manual S 256 0.4155 120 0.37 67
OT.OT12.EHZ. 2021-02-24T21:49:21.83 0.3 undecidable manual S 134 0.2518 135 0.22 71
OT.OT14.EHZ. 2021-02-24T21:49:20.36 0.3 undecidable manual S 64 0.1996 142 -0.21 72
IV.SGRT.HHZ. 2021-02-24T21:49:19.12 0.3 undecidable manual S 133 0.0782 163 0.21 74
OT.OT05.EHZ. 2021-02-24T21:49:19.46 0.3 undecidable manual S 198 0.1565 149 -0.39 71
IV.APRC.HHZ. 2021-02-24T21:49:19.04 0.3 undecidable manual S 241 0.1052 158 -0.13 75
IV.MELA.HHZ. 2021-02-24T21:49:18.52 0.3 undecidable manual P 256 0.4155 120 -0.06 72
OT.OT12.EHZ. 2021-02-24T21:49:16.39 0.3 undecidable manual P 134 0.2518 135 0.04 74
IV.SGRT.HHZ. 2021-02-24T21:49:15.19 0.1 undecidable manual P 133 0.0782 163 0.39 95
OT.OT14.EHZ. 2021-02-24T21:49:15.82 0.1 undecidable manual P 64 0.1996 142 0.06 100
OT.OT05.EHZ. 2021-02-24T21:49:14.74 0.3 undecidable manual P 198 0.1565 149 -0.6 67
IV.APRC.HHZ. 2021-02-24T21:49:14.89 0.3 undecidable manual P 241 0.1052 158 -0.06 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.APRC.HHN. ML:1.5 0.0001495 0.64 AML other m 2021-02-24T21:49:19.44
OT.OT05.EHE. ML:1.4 0.0001135 0.08 AML other m 2021-02-24T21:49:20.06
IV.APRC.HHE. ML:1.3 8.79E-5 1.02 AML other m 2021-02-24T21:49:20.80
OT.OT05.EHN. ML:1.2 6.665E-5 0.48 AML other m 2021-02-24T21:49:20.37
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