ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 2.0 on date 02-04-2018 and time 16:45:33 (Italy) in region 2 km SW Sant'Angelo dei Lombardi (AV)

A magnitude ML 2.0 earthquake occured in region: 2 km SW Sant'Angelo dei Lombardi (AV), on

  • 02-04-2018 14:45:33 (UTC)
  • 02-04-2018 16:45:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.92, 15.17 at 5 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
Sant'Angelo dei Lombardi AV 2 4250 4250
Rocca San Felice AV 4 851 5101
Lioni AV 5 6201 11302
Torella dei Lombardi AV 5 2144 13446
Guardia Lombardi AV 6 1718 15164
Morra De Sanctis AV 7 1297 16461
Nusco AV 8 4203 20664
Villamaina AV 9 995 21659
Teora AV 10 1537 23196
Castelfranci AV 11 2041 25237
Bagnoli Irpino AV 12 3217 28454
Caposele AV 12 3483 31937
Frigento AV 12 3780 35717
Sturno AV 13 3080 38797
Cassano Irpino AV 13 982 39779
Paternopoli AV 13 2384 42163
Carife AV 13 1408 43571
Andretta AV 13 1927 45498
Gesualdo AV 13 3516 49014
Montemarano AV 14 2851 51865
Castel Baronia AV 15 1129 52994
Montella AV 15 7780 60774
Calabritto AV 15 2391 63165
Castelvetere sul Calore AV 15 1615 64780
Vallata AV 15 2714 67494
Conza della Campania AV 16 1373 68867
Trevico AV 16 993 69860
San Nicola Baronia AV 16 771 70631
Castelnuovo di Conza SA 17 619 71250
Luogosano AV 17 1187 72437
Fontanarosa AV 17 3170 75607
San Mango sul Calore AV 17 1185 76792
Cairano AV 17 326 77118
San Sossio Baronia AV 17 1643 78761
Santomenna SA 18 443 79204
Flumeri AV 18 2963 82167
Sant'Angelo all'Esca AV 18 801 82968
Vallesaccarda AV 18 1386 84354
Laviano SA 19 1438 85792
Sant'Andrea di Conza AV 19 1539 87331
Senerchia AV 20 842 88173
Grottaminarda AV 20 8137 96310

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km E of Avellino (54857 inhabitants)
37 Km NE of Battipaglia (50786 inhabitants)
40 Km SE of Benevento (60091 inhabitants)
43 Km NE of Salerno (135261 inhabitants)
46 Km NE of Cava de' Tirreni (53659 inhabitants)
57 Km E of Scafati (50787 inhabitants)
62 Km NW of Potenza (67122 inhabitants)
63 Km E of Castellammare di Stabia (66466 inhabitants)
67 Km E of Acerra (59573 inhabitants)
69 Km SW of Foggia (151991 inhabitants)
69 Km E of Torre del Greco (86275 inhabitants)
69 Km E of Portici (55274 inhabitants)
70 Km E of Ercolano (53709 inhabitants)
72 Km E of Afragola (65057 inhabitants)
72 Km E of Caserta (76326 inhabitants)
73 Km SW of Cerignola (58396 inhabitants)
74 Km E of Casoria (77642 inhabitants)
78 Km E of Napoli (974074 inhabitants)
81 Km E of Aversa (53047 inhabitants)
81 Km E of Giugliano in Campania (122974 inhabitants)
82 Km E of Marano di Napoli (59874 inhabitants)
88 Km S of San Severo (53905 inhabitants)
91 Km E of Pozzuoli (81661 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours)

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Significant earthquakes since 1000 AD until 2006

Significant earthquakes since 1000 AD until 2006

This map shows the epicenters of the historical earthquakes catalogue CPT11 (Catalogo Parametrico dei Terremoti Italiani, 2011 version) with estimated magnitude ≥ 5.0 since 1000 AD until 2006. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
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 2.0 2018-04-02
14:45:33
40.92 15.17 5 2018-04-02
14:57:10
Sala Sismica INGV-Roma 55048281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-04-02 14:45:33 ± 0.09
Latitude 40.92 ± 0.00
Longitude 15.17 ± 0.01
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 55048281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 529
Semi-minor axis of confidence ellipse (meter) 251
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 47
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.12501
Epicentral distance of station farthest from the epicenter (degree) 1.08458
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitude information

ML:2

Field Value
Value 2
Uncertainty 0.1
Num. used stations 30
Type of magnitude ML
Reference to an origin 55048281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-04-02 14:57:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.AMUR.HHZ. 2018-04-02T14:46:09.06 0.6 undecidable manual S 90 1.0846 50 -0.03 42
IV.SGRT.HHZ. 2018-04-02T14:46:05.45 0.6 undecidable manual S 27 0.9434 50 0.55 39
IV.APRC.HHZ. 2018-04-02T14:46:03.78 0.6 undecidable manual S 18 0.8876 50 0.55 39
IV.MRVN.HHZ. 2018-04-02T14:46:01.07 0.6 undecidable manual S 79 0.7887 50 0.75 37
IV.CMPR.HHZ. 2018-04-02T14:45:55.00 0.6 undecidable manual S 170 0.6052 50 0.11 46
IV.AMUR.HHZ. 2018-04-02T14:45:54.73 0.6 negative manual P 90 1.0846 50 0.87 33
IV.ACER.HHZ. 2018-04-02T14:45:54.66 0.6 undecidable manual S 102 0.5998 50 -0.05 47
IV.MSAG.HHZ. 2018-04-02T14:45:52.12 1.0 negative manual P 35 0.9713 50 0.19 21
IV.SGRT.HHZ. 2018-04-02T14:45:51.43 0.6 positive manual P 27 0.9434 50 -0.02 44
IV.PAOL.HHZ. 2018-04-02T14:45:51.28 0.6 undecidable manual S 285 0.4676 50 0.48 44
IV.APRC.HHZ. 2018-04-02T14:45:51.18 0.6 undecidable manual P 18 0.8876 50 0.69 37
IV.MGR.HHZ. 2018-04-02T14:45:49.63 0.3 negative manual P 159 0.831 50 0.11 66
IV.BULG.HHZ. 2018-04-02T14:45:49.78 0.6 undecidable manual P 169 0.8517 50 -0.09 44
IV.MRVN.HHZ. 2018-04-02T14:45:48.03 0.6 positive manual P 79 0.7887 50 -0.77 37
IV.VULT.HHZ. 2018-04-02T14:45:46.30 0.6 undecidable manual S 83 0.3408 97 0 50
IV.SLCN.HHZ. 2018-04-02T14:45:45.55 0.1 undecidable manual P 146 0.6322 50 -0.57 82
IV.MRLC.HNZ. 2018-04-02T14:45:45.16 0.6 undecidable manual S 123 0.2905 98 0.8 40
IV.CMPR.HHZ. 2018-04-02T14:45:45.01 0.6 undecidable manual P 170 0.6052 50 -0.66 40
IV.ACER.HHZ. 2018-04-02T14:45:44.76 0.3 positive manual P 102 0.5998 50 -0.8 57
IV.PAOL.HHZ. 2018-04-02T14:45:43.36 1.0 undecidable manual P 285 0.4676 50 0.05 24
IV.SGTA.HHZ. 2018-04-02T14:45:43.50 0.6 undecidable manual S 34 0.2653 99 0.09 50
IV.MOCO.HNN. 2018-04-02T14:45:42.70 0.1 undecidable manual P 359 0.4542 50 -0.38 90
IV.MRB1.HHZ. 2018-04-02T14:45:42.84 0.6 undecidable manual S 324 0.2563 99 -0.23 48
IV.VULT.HHZ. 2018-04-02T14:45:40.38 0.1 undecidable manual P 83 0.3408 97 -0.33 93
IV.SGTA.HHZ. 2018-04-02T14:45:39.36 0.3 positive manual P 34 0.2653 99 0.32 71
IV.MCRV.HHZ. 2018-04-02T14:45:39.07 0.6 undecidable manual S 180 0.1331 108 0.64 44
IV.BIOG.HHZ. 2018-04-02T14:45:39.53 0.1 undecidable manual P 355 0.286 98 0.04 100
IV.MRLC.HNZ. 2018-04-02T14:45:39.37 0.1 undecidable manual P 123 0.2905 98 -0.22 96
IV.MRB1.HHZ. 2018-04-02T14:45:38.38 0.1 negative manual P 324 0.2563 99 -0.47 92
IV.MTMR.HNZ. 2018-04-02T14:45:38.52 0.6 undecidable manual S 271 0.125 109 0.37 48
IV.MTMR.HNZ. 2018-04-02T14:45:36.04 0.6 negative manual P 271 0.125 109 0.04 52
IV.MCRV.HHZ. 2018-04-02T14:45:36.35 0.1 positive manual P 180 0.1331 108 0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTMR.HNN. ML:2.4 0.00307 0.38 AML other m 2018-04-02T14:45:38.64
IV.MTMR.HNE. ML:2.3 0.00252 0.54 AML other m 2018-04-02T14:45:38.78
IV.MCRV.HHE. ML:2.4 0.002905 1.02 AML other m 2018-04-02T14:45:39.15
IV.MCRV.HHN. ML:2.4 0.003165 1.02 AML other m 2018-04-02T14:45:39.87
IV.MRB1.HHN. ML:2 0.000547 0.44 AML other m 2018-04-02T14:45:44.46
IV.MRB1.HNN. ML:2 0.0005565 0.44 AML other m 2018-04-02T14:45:44.46
IV.SGTA.HNE. ML:1.9 0.000437 0.6 AML other m 2018-04-02T14:45:46.41
IV.SGTA.HHE. ML:1.9 0.0003975 1.14 AML other m 2018-04-02T14:45:46.41
IV.SGTA.HHN. ML:1.8 0.0003615 1.42 AML other m 2018-04-02T14:45:46.98
IV.SGTA.HNN. ML:1.9 0.000373 1.42 AML other m 2018-04-02T14:45:46.99
IV.MRB1.HNE. ML:2 0.0005355 0.68 AML other m 2018-04-02T14:45:49.17
IV.MRB1.HHE. ML:2 0.000482 1.08 AML other m 2018-04-02T14:45:49.17
IV.VULT.HHE. ML:2.1 0.0005235 0.18 AML other m 2018-04-02T14:45:50.42
IV.VULT.HHN. ML:2.1 0.0004675 0.3 AML other m 2018-04-02T14:45:51.71
IV.PAOL.HHE. ML:1.8 0.0001675 0.24 AML other m 2018-04-02T14:45:52.69
IV.PAOL.HHN. ML:2 0.0002875 1.34 AML other m 2018-04-02T14:45:53.14
IV.ACER.HNN. ML:2.1 0.0002295 0.64 AML other m 2018-04-02T14:45:57.24
IV.ACER.HHN. ML:2 0.000174 0.68 AML other m 2018-04-02T14:45:57.51
IV.ACER.HHE. ML:2.2 0.000286 1.38 AML other m 2018-04-02T14:45:58.09
IV.ACER.HNE. ML:2.2 0.0003115 1.36 AML other m 2018-04-02T14:45:58.10
IV.MRVN.HHN. ML:1.9 0.00010745 0.48 AML other m 2018-04-02T14:46:01.37
IV.MRVN.HHE. ML:1.6 4.75E-5 0.84 AML other m 2018-04-02T14:46:03.45
IV.SLCN.HHN. ML:2 0.0001625 0.38 AML other m 2018-04-02T14:46:03.70
IV.APRC.HHE. ML:2 9.76E-5 0.2 AML other m 2018-04-02T14:46:06.30
IV.APRC.HHN. ML:2 9.115E-5 1.02 AML other m 2018-04-02T14:46:06.83
IV.MELA.HHN. ML:1.9 0.0001028 0.42 AML other m 2018-04-02T14:46:07.35
IV.SGRT.HHE. ML:2.1 0.000118 0.94 AML other m 2018-04-02T14:46:07.16
IV.MELA.HHE. ML:1.9 9.075E-5 0.94 AML other m 2018-04-02T14:46:08.87
IV.MSAG.HHE. ML:1.6 3.465E-5 0.5 AML other m 2018-04-02T14:46:09.44
IV.SGRT.HHN. ML:2 9.24E-5 0.96 AML other m 2018-04-02T14:46:09.90
IV.MGR.HHN. ML:2 0.00012065 0.42 AML other m 2018-04-02T14:46:09.65
IV.SLCN.HHE. ML:2.1 0.000215 0.4 AML other m 2018-04-02T14:46:09.86
IV.AMUR.HHN. ML:1.9 5.68E-5 1.32 AML other m 2018-04-02T14:46:10.03
IV.MGR.HHE. ML:2 9.81E-5 0.38 AML other m 2018-04-02T14:46:10.08
IV.MSAG.HHN. ML:2 0.00010005 0.3 AML other m 2018-04-02T14:46:10.91
IV.AMUR.HHE. ML:1.9 6.445E-5 0.24 AML other m 2018-04-02T14:46:13.86
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://cnt.rm.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in full SEED format Download