Earthquake with magnitude of ML 1.5 on date 04-05-2021 and time 11:31:36 (Italy) in region 2 km NW Galluccio (CE)

A magnitude ML 1.5 earthquake occured in region: 2 km NW Galluccio (CE), on

  • 04-05-2021 09:31:36 (UTC)
  • 04-05-2021 11:31:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.352, 13.939 at 8 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
Galluccio CE 2 2154 2154
Conca della Campania CE 5 1239 3393
Rocca d'Evandro CE 6 3283 6676
Tora e Piccilli CE 7 910 7586
Sant'Ambrogio sul Garigliano FR 7 966 8552
Mignano Monte Lungo CE 7 3250 11802
Roccamonfina CE 8 3511 15313
Sant'Andrea del Garigliano FR 8 1505 16818
Marzano Appio CE 9 2226 19044
San Pietro Infine CE 11 944 19988
Sant'Apollinare FR 11 1919 21907
Vallemaio FR 11 937 22844
Castelforte LT 11 4386 27230
Santi Cosma e Damiano LT 12 6897 34127
Sessa Aurunca CE 12 21727 55854
Presenzano CE 12 1766 57620
San Vittore del Lazio FR 13 2636 60256
Caianello CE 13 1824 62080
Coreno Ausonio FR 14 1644 63724
Sesto Campano IS 14 2388 66112
Cervaro FR 15 8109 74221
San Giorgio a Liri FR 16 3164 77385
Castelnuovo Parano FR 16 883 78268
Teano CE 16 12577 90845
Pignataro Interamna FR 16 2595 93440
Ausonia FR 16 2619 96059
Vairano Patenora CE 16 6594 102653
Conca Casale IS 17 200 102853
Venafro IS 17 11280 114133
Cellole CE 18 7830 121963
Spigno Saturnia LT 18 2961 124924
Cassino FR 18 36142 161066
Carinola CE 19 7283 168349
Minturno LT 19 19783 188132
Pietravairano CE 19 2984 191116
Viticuso FR 19 353 191469

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NW of Caserta (76326 inhabitants)
48 Km NW of Aversa (53047 inhabitants)
52 Km NW of Giugliano in Campania (122974 inhabitants)
55 Km NW of Marano di Napoli (59874 inhabitants)
57 Km NW of Afragola (65057 inhabitants)
58 Km N of Pozzuoli (81661 inhabitants)
58 Km NW of Casoria (77642 inhabitants)
58 Km NW of Acerra (59573 inhabitants)
63 Km NW of Napoli (974074 inhabitants)
68 Km NW of Portici (55274 inhabitants)
69 Km NW of Ercolano (53709 inhabitants)
72 Km NW of Torre del Greco (86275 inhabitants)
75 Km W of Benevento (60091 inhabitants)
83 Km NW of Scafati (50787 inhabitants)
86 Km NW of Castellammare di Stabia (66466 inhabitants)
87 Km NW of Avellino (54857 inhabitants)
87 Km E of Latina (125985 inhabitants)
97 Km NW of Cava de' Tirreni (53659 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 1.5 2021-05-04
09:31:36
41.3523 13.9393 8 2021-05-04
09:40:59
Sala Sismica INGV-Roma 89761461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-04 09:31:36 ± 0.13
Latitude 41.3523 ± 0.0072
Longitude 13.9393 ± 0.0084
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 89761461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 888
Semi-minor axis of confidence ellipse (meter) 164
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 221
Circular confidence region, given by single value of horizontal uncertainty (meter) 890
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.67989
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 15
Type of magnitude ML
Reference to an origin 89761461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-04 09:40:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.T0110.HHZ. 2021-05-04T09:31:51.28 3.0 undecidable manual P -2.61 0
IV.POFI.HHN. 2021-05-04T09:31:51.93 0.3 undecidable manual S 335 0.4029 50 0.35 67
IV.VENT.EHE. 2021-05-04T09:31:50.32 0.6 undecidable manual P 215 0.6799 50 0.36 42
IV.MIDA.HHZ. 2021-05-04T09:31:50.51 0.6 undecidable manual S 39 0.3732 50 -0.2 46
IV.SGG.HNE. 2021-05-04T09:31:49.63 0.6 undecidable manual S 84 0.3318 50 0.15 47
IV.CERA.HHZ. 2021-05-04T09:31:47.12 0.6 undecidable manual S 14 0.2527 106 0.53 44
IT.OPI.HGN. 2021-05-04T09:31:46.26 0.3 undecidable manual P 349 0.4317 50 0.56 63
IV.VAGA.HHZ. 2021-05-04T09:31:46.07 0.6 undecidable manual S 74 0.2302 107 0.3 47
IV.PIGN.HHZ. 2021-05-04T09:31:46.38 0.3 undecidable manual S 130 0.2365 107 0.38 69
IV.RNI2.HHE. 2021-05-04T09:31:45.07 0.6 undecidable manual P 24 0.3849 50 0.16 47
IV.POFI.HHN. 2021-05-04T09:31:44.57 0.3 undecidable manual P 335 0.4029 50 -0.64 62
IV.MIDA.HHZ. 2021-05-04T09:31:44.55 0.3 undecidable manual P 39 0.3732 50 -0.15 70
IV.LRP.EHZ. 2021-05-04T09:31:44.98 0.3 undecidable manual P 318 0.3957 50 -0.11 71
IV.SGG.HNE. 2021-05-04T09:31:43.72 0.3 undecidable manual P 84 0.3318 50 -0.28 69
IV.MCI.EHZ. 2021-05-04T09:31:43.53 0.6 undecidable manual S 326 0.1682 113 0.01 50
IV.CERA.HHZ. 2021-05-04T09:31:42.02 0.3 undecidable manual P 14 0.2527 106 -0.31 70
IV.VAGA.HHZ. 2021-05-04T09:31:41.44 0.3 undecidable manual P 74 0.2302 107 -0.41 69
IV.PIGN.HHZ. 2021-05-04T09:31:41.77 0.3 undecidable manual P 130 0.2365 107 -0.22 71
IV.MCI.EHZ. 2021-05-04T09:31:40.52 0.1 undecidable manual P 326 0.1682 113 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCI.EHN. ML:1.9 0.000616 0.24 AML other m 2021-05-04T09:31:44.92
IV.MCI.EHE. ML:2 0.000783 0.32 AML other m 2021-05-04T09:31:46.78
IV.PIGN.HHN. ML:1.4 0.0001305 0.42 AML other m 2021-05-04T09:31:47.81
IV.CERA.HHE. ML:1.8 0.000363 0.52 AML other m 2021-05-04T09:31:48.65
IV.CERA.HNE. ML:1.8 0.0003545 0.52 AML other m 2021-05-04T09:31:48.65
IV.CERA.HHN. ML:1.7 0.000275 0.44 AML other m 2021-05-04T09:31:49.05
IV.CERA.HNN. ML:1.7 0.000249 0.44 AML other m 2021-05-04T09:31:49.05
IV.VAGA.HHE. ML:1.4 0.0001665 0.38 AML other m 2021-05-04T09:31:49.57
IV.PIGN.HHE. ML:1.3 0.0001025 1.48 AML other m 2021-05-04T09:31:49.94
IV.VAGA.HHN. ML:1.7 0.00028 0.26 AML other m 2021-05-04T09:31:50.42
IV.MIDA.HHN. ML:1.4 8.25E-5 0.34 AML other m 2021-05-04T09:31:56.43
IV.MIDA.HHE. ML:1.2 4.845E-5 0.78 AML other m 2021-05-04T09:32:00.90
IV.VAGA.HNE. ML:1.4 0.00016517965 0.4032 AML other m 2021-05-04T09:31:49.77
IV.VAGA.HNN. ML:1.7 0.0002684684 0.2624 AML other m 2021-05-04T09:31:50.42
IV.PIGN.HNE. ML:1.4 0.0001466946 0.5312 AML other m 2021-05-04T09:31:51.80
IV.PIGN.HNN. ML:1.4 0.00012949821 0.416 AML other m 2021-05-04T09:31:49.06
IV.MIDA.HNE. ML:1.4 7.5988475E-5 0.3392 AML other m 2021-05-04T09:31:56.43
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