Earthquake with magnitude of ML 1.8 on date 19-07-2021 and time 06:15:27 (Italy) in region 2 km SW San Marco la Catola (FG)

A magnitude ML 1.8 earthquake occured in region: 2 km SW San Marco la Catola (FG), on

  • 19-07-2021 04:15:27 (UTC)
  • 19-07-2021 06:15:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.508, 14.997 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 Marco la Catola FG 2 1012 1012
Volturara Appula FG 5 430 1442
Tufara CB 5 925 2367
Celenza Valfortore FG 6 1598 3965
Gambatesa CB 7 1464 5429
Castelvetere in Val Fortore BN 9 1240 6669
Carlantino FG 10 980 7649
Motta Montecorvino FG 10 730 8379
San Bartolomeo in Galdo BN 11 4867 13246
Volturino FG 11 1743 14989
Macchia Valfortore CB 12 576 15565
Pietramontecorvino FG 12 2721 18286
Baselice BN 12 2397 20683
Pietracatella CB 13 1375 22058
Castelnuovo della Daunia FG 13 1445 23503
Riccia CB 14 5262 28765
Alberona FG 14 985 29750
Casalvecchio di Puglia FG 14 1877 31627
Casalnuovo Monterotaro FG 15 1556 33183
Sant'Elia a Pianisi CB 16 1818 35001
Jelsi CB 17 1781 36782
Roseto Valfortore FG 17 1074 37856
Foiano di Val Fortore BN 17 1410 39266
Colletorto CB 18 1938 41204
Monacilioni CB 19 523 41727
Castelpagano BN 20 1483 43210
San Giuliano di Puglia CB 20 1042 44252

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SW of San Severo (53905 inhabitants)
46 Km NE of Benevento (60091 inhabitants)
46 Km W of Foggia (151991 inhabitants)
68 Km N of Avellino (54857 inhabitants)
73 Km NE of Caserta (76326 inhabitants)
78 Km W of Manfredonia (57279 inhabitants)
80 Km W of Cerignola (58396 inhabitants)
81 Km NE of Acerra (59573 inhabitants)
87 Km NE of Afragola (65057 inhabitants)
89 Km NE of Aversa (53047 inhabitants)
89 Km NE of Casoria (77642 inhabitants)
93 Km NE of Giugliano in Campania (122974 inhabitants)
93 Km N of Cava de' Tirreni (53659 inhabitants)
93 Km NE of Portici (55274 inhabitants)
93 Km NE of Scafati (50787 inhabitants)
94 Km N of Salerno (135261 inhabitants)
95 Km NE of Ercolano (53709 inhabitants)
96 Km NE of Marano di Napoli (59874 inhabitants)
96 Km NE of Torre del Greco (86275 inhabitants)
97 Km NE of Napoli (974074 inhabitants)
100 Km N of Battipaglia (50786 inhabitants)
100 Km NE of Castellammare di Stabia (66466 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 1.8 2021-07-19
04:15:27
41.5077 14.9967 25 2021-07-19
04:23:44
Sala Sismica INGV-Roma 92942221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-19 04:15:27 ± 0.11
Latitude 41.5077 ± 0.0054
Longitude 14.9967 ± 0.0060
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 92942221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 680
Semi-minor axis of confidence ellipse (meter) 68
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 330
Circular confidence region, given by single value of horizontal uncertainty (meter) 680
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.06475
Epicentral distance of station farthest from the epicenter (degree) 0.60974
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 92942221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-19 04:23:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SGRT.HHZ. 2021-07-19T04:15:48.54 0.3 undecidable manual S 66 0.6097 104 0.2 65
IV.PSB1.HHN. 2021-07-19T04:15:40.20 0.3 undecidable manual S 206 0.3166 120 -0.01 72
OT.OT16.EHE. 2021-07-19T04:15:40.96 0.6 undecidable manual S 22 0.3516 117 -0.17 46
IV.BSSO.HHZ. 2021-07-19T04:15:40.03 0.3 undecidable manual S 277 0.304 121 0.14 71
IV.SGRT.HHZ. 2021-07-19T04:15:39.87 0.1 undecidable manual P 66 0.6097 104 0.41 83
IV.MELA.HHZ. 2021-07-19T04:15:38.00 0.3 undecidable manual S 26 0.2203 131 0.11 72
IV.SACR.HHZ. 2021-07-19T04:15:38.42 0.3 undecidable manual S 243 0.2446 128 -0.01 73
OT.OT11.EHE. 2021-07-19T04:15:38.40 0.6 undecidable manual S 88 0.2536 126 -0.25 46
IV.GATE.HHZ. 2021-07-19T04:15:35.43 0.3 undecidable manual S 275 0.0648 162 0.16 74
IV.BSSO.HHZ. 2021-07-19T04:15:34.76 0.6 undecidable manual P 277 0.304 121 0.18 46
IV.PSB1.HHN. 2021-07-19T04:15:34.66 0.1 undecidable manual P 206 0.3166 120 -0.1 95
OT.OT16.EHE. 2021-07-19T04:15:34.97 0.1 undecidable manual P 22 0.3516 117 -0.32 90
IV.MELA.HHZ. 2021-07-19T04:15:33.37 0.1 undecidable manual P 26 0.2203 131 -0.05 97
IV.SACR.HHZ. 2021-07-19T04:15:33.66 0.1 positive manual P 243 0.2446 128 -0.07 97
OT.OT11.EHE. 2021-07-19T04:15:33.70 0.1 undecidable manual P 88 0.2536 126 -0.16 95
IV.GATE.HHZ. 2021-07-19T04:15:31.97 0.1 negative manual P 275 0.0648 162 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GATE.HNE. ML:2 0.0005935 0.48 AML other m 2021-07-19T04:15:37.54
IV.GATE.HHE. ML:2 0.000586 0.48 AML other m 2021-07-19T04:15:37.54
IV.GATE.HNN. ML:1.8 0.000396 0.38 AML other m 2021-07-19T04:15:37.78
IV.GATE.HHN. ML:1.8 0.000426 0.4 AML other m 2021-07-19T04:15:37.77
IV.SACR.HHE. ML:1.4 9.895E-5 0.52 AML other m 2021-07-19T04:15:38.64
IV.MELA.HHE. ML:1.8 0.0003015 1.08 AML other m 2021-07-19T04:15:38.38
IV.SACR.HNN. ML:1.4 0.00010885 1.14 AML other m 2021-07-19T04:15:39.65
IV.SACR.HHN. ML:1.4 0.0001079 1.14 AML other m 2021-07-19T04:15:39.65
IV.MELA.HHN. ML:2 0.00044 0.62 AML other m 2021-07-19T04:15:40.89
IV.SACR.HNE. ML:2 0.0004435 1.6 AML other m 2021-07-19T04:15:55.84
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download