Earthquake with magnitude of ML 1.3 on date 23-10-2021 and time 03:07:34 (Italy) in region 1 km NW Flumeri (AV)

A magnitude ML 1.3 earthquake occured in region: 1 km NW Flumeri (AV), on

  • 23-10-2021 01:07:34 (UTC)
  • 23-10-2021 03:07:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.081, 15.148 at 13 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
Flumeri AV 1 2963 2963
San Nicola Baronia AV 5 771 3734
Villanova del Battista AV 5 1690 5424
San Sossio Baronia AV 5 1643 7067
Castel Baronia AV 5 1129 8196
Sturno AV 7 3080 11276
Zungoli AV 7 1099 12375
Grottaminarda AV 7 8137 20512
Carife AV 8 1408 21920
Trevico AV 8 993 22913
Melito Irpino AV 8 1920 24833
Frigento AV 9 3780 28613
Vallesaccarda AV 9 1386 29999
Ariano Irpino AV 10 22700 52699
Vallata AV 10 2714 55413
Gesualdo AV 10 3516 58929
Bonito AV 12 2448 61377
Fontanarosa AV 13 3170 64547
Scampitella AV 13 1234 65781
Anzano di Puglia FG 13 1284 67065
Villamaina AV 13 995 68060
Monteleone di Puglia FG 13 1021 69081
Mirabella Eclano AV 14 7684 76765
Rocca San Felice AV 14 851 77616
Guardia Lombardi AV 15 1718 79334
Paternopoli AV 15 2384 81718
Sant'Angelo all'Esca AV 15 801 82519
Torella dei Lombardi AV 16 2144 84663
Montecalvo Irpino AV 16 3725 88388
Luogosano AV 17 1187 89575
Savignano Irpino AV 17 1140 90715
Sant'Angelo dei Lombardi AV 17 4250 94965
Accadia FG 18 2376 97341
Taurasi AV 18 2377 99718
Apice BN 19 5686 105404
Castelfranci AV 19 2041 107445
Greci AV 19 691 108136
Panni FG 19 804 108940
Morra De Sanctis AV 19 1297 110237
Venticano AV 20 2537 112774
Lapio AV 20 1572 114346
San Mango sul Calore AV 20 1185 115531

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km E of Benevento (60091 inhabitants)
35 Km NE of Avellino (54857 inhabitants)
54 Km SW of Foggia (151991 inhabitants)
54 Km N of Battipaglia (50786 inhabitants)
55 Km NE of Salerno (135261 inhabitants)
56 Km NE of Cava de' Tirreni (53659 inhabitants)
64 Km NE of Scafati (50787 inhabitants)
67 Km W of Cerignola (58396 inhabitants)
67 Km E of Acerra (59573 inhabitants)
68 Km E of Caserta (76326 inhabitants)
70 Km S of San Severo (53905 inhabitants)
71 Km NE of Castellammare di Stabia (66466 inhabitants)
72 Km E of Afragola (65057 inhabitants)
72 Km E of Portici (55274 inhabitants)
73 Km E of Torre del Greco (86275 inhabitants)
74 Km E of Ercolano (53709 inhabitants)
74 Km NW of Potenza (67122 inhabitants)
74 Km E of Casoria (77642 inhabitants)
80 Km E of Napoli (974074 inhabitants)
80 Km E of Aversa (53047 inhabitants)
81 Km E of Giugliano in Campania (122974 inhabitants)
83 Km E of Marano di Napoli (59874 inhabitants)
89 Km SW of Manfredonia (57279 inhabitants)
92 Km E of Pozzuoli (81661 inhabitants)
98 Km W of Andria (100440 inhabitants)
98 Km W of Barletta (94814 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 1.3 2021-10-23
01:07:34
41.0807 15.1477 13 2021-10-23
01:13:53
Sala Sismica INGV-Roma 96893971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-23 01:07:34 ± 0.12
Latitude 41.0807 ± 0.0081
Longitude 15.1477 ± 0.0095
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96893971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 729
Semi-minor axis of confidence ellipse (meter) 682
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 48
Circular confidence region, given by single value of horizontal uncertainty (meter) 730
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.06115
Epicentral distance of station farthest from the epicenter (degree) 0.17267
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:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 96893971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-23 01:13:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SNAL.HHZ. 2021-10-23T01:07:41.67 0.6 undecidable manual S 163 0.1619 107 0.32 48
IX.SSB3.HHZ.02 2021-10-23T01:07:39.05 0.6 undecidable manual S 92 0.0612 145 0.14 50
IV.CAFE.HHZ. 2021-10-23T01:07:39.47 0.6 undecidable manual S 128 0.0854 133 0.09 51
IV.SGTA.HHZ. 2021-10-23T01:07:38.56 0.3 positive manual P 72 0.1727 105 0.14 73
IV.SNAL.HHZ. 2021-10-23T01:07:38.08 0.1 positive manual P 163 0.1619 107 -0.17 98
IV.MRB1.HHZ. 2021-10-23T01:07:38.00 0.3 undecidable manual P 287 0.1412 113 0.08 75
IX.LGS3.HNE.01 2021-10-23T01:07:38.13 0.6 undecidable manual P 232 0.1511 110 0.06 50
IV.CAFE.HHZ. 2021-10-23T01:07:36.95 0.3 negative manual P 128 0.0854 133 -0.16 75
IX.SSB3.HHZ.02 2021-10-23T01:07:36.67 0.1 positive manual P 92 0.0612 145 -0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IX.SSB3.HHN.02 ML:1.5 0.00034832695 0.144 AML other m 2021-10-23T01:07:39.21
IX.SSB3.HHE.02 ML:1.6 0.00048092575 0.176 AML other m 2021-10-23T01:07:39.11
IV.CAFE.HNN. ML:1.2 0.000157569581 0.1792 AML other m 2021-10-23T01:07:39.56
IV.CAFE.HHN. ML:1.2 0.000172172835 0.16 AML other m 2021-10-23T01:07:39.56
IV.CAFE.HHE. ML:1 0.0001201479 0.24 AML other m 2021-10-23T01:07:40.06
IV.CAFE.HNE. ML:1.7 0.0004995 0.28 AML other m 2021-10-23T01:07:39.79
IV.SNAL.HNN. ML:1.6 0.000264 0.3 AML other m 2021-10-23T01:07:41.93
IV.SNAL.HHN. ML:1.5 0.0002585 0.3 AML other m 2021-10-23T01:07:41.93
IV.SNAL.HHE. ML:1.3 0.0001553463 0.2 AML other m 2021-10-23T01:07:41.80
IV.SNAL.HNE. ML:1.2 0.00012095 1.74 AML other m 2021-10-23T01:07:42.07
IV.MRB1.HNE. ML:1.3 0.000169300155 0.52 AML other m 2021-10-23T01:07:40.94
IV.MRB1.HNN. ML:1.3 0.0001771959 0.7096 AML other m 2021-10-23T01:07:45.81
IV.MRB1.HHE. ML:1 7.706079E-5 0.48 AML other m 2021-10-23T01:07:47.54
IV.MRB1.HHN. ML:1.1 9.8690155E-5 0.36 AML other m 2021-10-23T01:07:47.09
IV.SGTA.HNE. ML:1.2 0.00010314779 0.54 AML other m 2021-10-23T01:07:39.48
IV.SGTA.HNN. ML:1.4 0.000189539 0.9896 AML other m 2021-10-23T01:07:39.69
IV.SGTA.HHE. ML:1 6.2948985E-5 0.48 AML other m 2021-10-23T01:07:43.21
IV.SGTA.HHN. ML:0.7 3.6840885E-5 0.3 AML other m 2021-10-23T01:07:42.78
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