Earthquake with magnitude of ML 1.2 on date 23-02-2020 and time 18:21:09 (UTC) in region 6 km E San Nicandro Garganico (FG)

A magnitude ML 1.2 earthquake occured in region: 6 km E San Nicandro Garganico (FG), on

  • 23-02-2020 18:21:09 (UTC)
  • 23-02-2020 19:21:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.83, 15.64 at 26 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 Nicandro Garganico FG 6 15566 15566
Cagnano Varano FG 11 7330 22896
San Marco in Lamis FG 13 13831 36727
San Giovanni Rotondo FG 16 27184 63911
Apricena FG 17 13328 77239
Rignano Garganico FG 18 2117 79356
Carpino FG 18 4182 83538

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NE of San Severo (53905 inhabitants)
33 Km NW of Manfredonia (57279 inhabitants)
42 Km N of Foggia (151991 inhabitants)
67 Km NW of Cerignola (58396 inhabitants)
78 Km NW of Barletta (94814 inhabitants)
87 Km NW of Andria (100440 inhabitants)
90 Km NW of Trani (56217 inhabitants)
98 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
Rev 100 ML 1.2 2020-02-23
18:21:09
41.83 15.64 26 2020-02-23
18:29:06
Sala Sismica INGV-Roma 76760201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-23 18:21:09 ± 0.31
Latitude 41.83 ± 0.02
Longitude 15.64 ± 0.02
Depth (km) 26 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76760201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2139
Semi-minor axis of confidence ellipse (meter) 991
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 158
Circular confidence region, given by single value of horizontal uncertainty (meter) 2140
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 243
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) 0.29
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.4011
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 7
Type of magnitude ML
Reference to an origin 76760201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-23 18:29:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.AMUR.HHZ. 2020-02-23T18:21:28.94 3.0 undecidable manual P -0.02 0
IV.OT13.EHZ. 2020-02-23T18:21:26.75 3.0 undecidable manual P 0
IV.MELA.HHZ. 2020-02-23T18:21:25.21 0.6 undecidable manual S 252 0.4011 113 0.68 41
OT.OT12.EHZ. 2020-02-23T18:21:22.00 0.3 undecidable manual S 135 0.2851 123 0.5 68
OT.OT05.EHZ. 2020-02-23T18:21:18.65 0.3 undecidable manual S 188 0.1754 138 -0.37 70
IV.MELA.HHZ. 2020-02-23T18:21:18.06 0.6 undecidable manual P 252 0.4011 113 -0.06 47
OT.OT06.EHZ. 2020-02-23T18:21:18.86 0.3 undecidable manual S 192 0.1511 143 0.31 72
OT.OT03.EHZ. 2020-02-23T18:21:18.18 0.3 undecidable manual S 176 0.1214 149 0.12 75
IV.APRC.HHZ. 2020-02-23T18:21:17.68 0.3 undecidable manual S 223 0.1034 153 -0.12 75
IV.SGRT.HHZ. 2020-02-23T18:21:17.90 0.3 undecidable manual S 135 0.1115 151 -0.02 76
OT.OT04.EHZ. 2020-02-23T18:21:17.97 0.3 undecidable manual S 200 0.1214 149 -0.09 76
OT.OT12.EHZ. 2020-02-23T18:21:16.89 0.6 undecidable manual P 135 0.2851 123 0.52 46
OT.OT06.EHZ. 2020-02-23T18:21:14.73 0.3 undecidable manual P 192 0.1511 143 0.05 76
IV.SGRT.HHZ. 2020-02-23T18:21:14.25 0.1 positive manual P 135 0.1115 151 -0.06 100
OT.OT03.EHZ. 2020-02-23T18:21:14.43 0.3 undecidable manual P 176 0.1214 149 0.04 77
OT.OT04.EHZ. 2020-02-23T18:21:14.26 0.6 undecidable manual P 200 0.1214 149 -0.13 49
OT.OT05.EHZ. 2020-02-23T18:21:14.22 0.3 undecidable manual P 188 0.1754 138 -0.73 61
IV.APRC.HHZ. 2020-02-23T18:21:14.01 0.1 undecidable manual P 223 0.1034 153 -0.23 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.APRC.HHE. ML:1.2 7.769453E-5 0.0896 AML other m 2020-02-23T18:21:18.39
IV.APRC.HHN. ML:1.2 8.982907E-5 0.1792 AML other m 2020-02-23T18:21:20.25
IV.APRC.HNE. ML:1.2 8.5612325E-5 0.1024 AML other m 2020-02-23T18:21:18.40
IV.SGRT.HHE. ML:1.3 0.000112846695 0.1792 AML other m 2020-02-23T18:21:18.17
IV.SGRT.HHN. ML:1.1 7.3503755E-5 0.1664 AML other m 2020-02-23T18:21:18.05
IV.MELA.HHE. ML:1.2 4.4168155E-5 0.256 AML other m 2020-02-23T18:21:25.52
IV.MELA.HHN. ML:1.2 4.1705255E-5 0.192 AML other m 2020-02-23T18:21:25.41
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