Earthquake with magnitude of ML 1.8 on date 23-03-2020 and time 04:22:24 (Italy) in region 1 km SE Roccarainola (NA)

A magnitude ML 1.8 earthquake occured in region: 1 km SE Roccarainola (NA), on

  • 23-03-2020 03:22:24 (UTC)
  • 23-03-2020 04:22:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.97, 14.57 at 11 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
Roccarainola NA 1 7082 7082
Tufino NA 1 3776 10858
Cicciano NA 2 12906 23764
Comiziano NA 2 1814 25578
Avella AV 3 7890 33468
Sperone AV 3 3706 37174
Camposano NA 4 5333 42507
Casamarciano NA 4 3289 45796
Baiano AV 4 4718 50514
Cimitile NA 5 7280 57794
Visciano NA 5 4454 62248
Sirignano AV 6 2933 65181
Nola NA 6 34431 99612
Quadrelle AV 6 1865 101477
San Paolo Bel Sito NA 6 3513 104990
Mugnano del Cardinale AV 7 5373 110363
Cervinara AV 7 9658 120021
Liveri NA 7 1607 121628
Forchia BN 7 1235 122863
Marzano di Nola AV 8 1727 124590
Rotondi AV 8 3591 128181
Paolisi BN 8 2072 130253
Arpaia BN 8 1992 132245
Saviano NA 8 15982 148227
Pago del Vallo di Lauro AV 9 1830 150057
San Vitaliano NA 9 6461 156518
San Felice a Cancello CE 9 17568 174086
Arienzo CE 9 5365 179451
Scisciano NA 9 5994 185445
Domicella AV 10 1862 187307
San Martino Valle Caudina AV 10 4884 192191
Carbonara di Nola NA 10 2429 194620
Marigliano NA 11 30157 224777
Taurano AV 11 1546 226323
Airola BN 11 8195 234518
Santa Maria a Vico CE 11 14022 248540
Lauro AV 11 3509 252049
Palma Campania NA 11 15978 268027
Mariglianella NA 12 7787 275814
Pannarano BN 12 2130 277944
Bucciano BN 12 2100 280044
Montesarchio BN 12 13500 293544
San Gennaro Vesuviano NA 12 11966 305510
Moiano BN 12 4094 309604
Bonea BN 13 1448 311052
Moschiano AV 13 1673 312725
Brusciano NA 13 16466 329191
Quindici AV 14 1938 331129
Roccabascerana AV 14 2354 333483
Pietrastornina AV 14 1553 335036
Sant'Angelo a Scala AV 14 730 335766
Durazzano BN 15 2230 337996
Cervino CE 15 5031 343027
Sant'Agata de' Goti BN 15 11216 354243
Castello di Cisterna NA 15 7869 362112
Monteforte Irpino AV 15 11467 373579
Mercogliano AV 15 12267 385846
Summonte AV 15 1583 387429
Ospedaletto d'Alpinolo AV 15 2145 389574
Ottaviano NA 15 23860 413434
Somma Vesuviana NA 16 35233 448667
San Giuseppe Vesuviano NA 16 30657 479324
Arpaise BN 16 761 480085
Pomigliano d'Arco NA 16 39922 520007
Acerra NA 17 59573 579580
Striano NA 17 8397 587977
Capriglia Irpina AV 17 2398 590375
Maddaloni CE 18 39166 629541
Sarno SA 18 31529 661070
Valle di Maddaloni CE 18 2742 663812
Altavilla Irpina AV 18 4196 668008
Apollosa BN 18 2658 670666
Sant'Anastasia NA 18 27671 698337
Grottolella AV 18 1869 700206
Ceppaloni BN 18 3415 703621
Tocco Caudio BN 18 1508 705129
Forino AV 18 5384 710513
Terzigno NA 19 18968 729481
Poggiomarino NA 19 21976 751457
Campoli del Monte Taburno BN 19 1546 753003
Casalnuovo di Napoli NA 19 49855 802858
San Leucio del Sannio BN 20 3106 805964
San Valentino Torio SA 20 10947 816911
Bracigliano SA 20 5565 822476
Avellino AV 20 54857 877333

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km E of Acerra (59573 inhabitants)
20 Km W of Avellino (54857 inhabitants)
22 Km E of Afragola (65057 inhabitants)
23 Km SE of Caserta (76326 inhabitants)
24 Km NE of Portici (55274 inhabitants)
25 Km E of Casoria (77642 inhabitants)
25 Km N of Scafati (50787 inhabitants)
25 Km SW of Benevento (60091 inhabitants)
26 Km NE of Ercolano (53709 inhabitants)
27 Km NE of Torre del Greco (86275 inhabitants)
30 Km E of Napoli (974074 inhabitants)
31 Km E of Aversa (53047 inhabitants)
31 Km E of Giugliano in Campania (122974 inhabitants)
31 Km N of Castellammare di Stabia (66466 inhabitants)
32 Km NW of Cava de' Tirreni (53659 inhabitants)
33 Km E of Marano di Napoli (59874 inhabitants)
36 Km NW of Salerno (135261 inhabitants)
42 Km E of Pozzuoli (81661 inhabitants)
53 Km NW of Battipaglia (50786 inhabitants)
98 Km SW of Foggia (151991 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 1.8 2020-03-23
03:22:24
40.97 14.57 11 2020-03-23
03:38:19
Sala Sismica INGV-Roma 77484011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-23 03:22:24 ± 0.26
Latitude 40.97 ± 0.02
Longitude 14.57 ± 0.04
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77484011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3820
Semi-minor axis of confidence ellipse (meter) 1370
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 311
Circular confidence region, given by single value of horizontal uncertainty (meter) 3820
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.53
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.33005
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 4
Type of magnitude ML
Reference to an origin 77484011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-23 03:38:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HVZN.HNZ. 2020-03-23T03:24:06.58 3.0 undecidable manual Sn 0.56 0
IV.COR1.EHZ. 2020-03-23T03:23:46.35 3.0 undecidable manual Sg 4.2 0
IV.MAON.HHZ. 2020-03-23T03:23:42.58 3.0 undecidable manual Sn -0.89 0
IV.PII.HHZ. 2020-03-23T03:23:36.54 3.0 negative manual Pg 13.84 0
IV.NDIM.HHZ. 2020-03-23T03:23:31.82 3.0 negative manual Pn -0.28 0
IV.RIBO.EHZ.01 2020-03-23T03:23:19.91 3.0 undecidable manual Pg 7.91 0
IV.APEC.HHZ. 2020-03-23T03:23:18.34 3.0 negative manual Pg 9.76 0
IV.SALB.HHZ. 2020-03-23T03:23:15.78 3.0 undecidable manual Sn -0.56 0
IV.MURB.HHZ. 2020-03-23T03:23:08.02 3.0 undecidable manual Pn 3.41 0
IT.PLTA.HNZ. 2020-03-23T03:22:39.35 3.0 undecidable manual P 0.09 0
IV.CRTO.HHZ. 2020-03-23T03:22:32.05 0.3 undecidable manual S 217 0.1853 50 -0.75 62
IV.VBKN.HHZ. 2020-03-23T03:22:32.33 0.3 undecidable manual S 217 0.1745 50 -0.16 74
IV.VCRE.HHZ. 2020-03-23T03:22:32.01 0.3 undecidable manual S 215 0.1835 50 -0.72 63
IV.VVDG.HHZ. 2020-03-23T03:22:31.91 0.3 undecidable manual S 220 0.1736 50 -0.54 68
IV.MTMR.EHZ. 2020-03-23T03:22:31.72 0.1 undecidable manual P 99 0.3301 50 -0.19 95
IV.VBKN.HHZ. 2020-03-23T03:22:30.03 0.1 undecidable manual P 217 0.1745 50 0.78 82
IV.VITU.HHE. 2020-03-23T03:22:29.57 0.1 undecidable manual P 12 0.2185 50 -0.43 92
IV.VCRE.HHZ. 2020-03-23T03:22:29.87 0.1 undecidable manual P 215 0.1835 50 0.48 92
IV.CRTO.HHZ. 2020-03-23T03:22:29.85 0.1 undecidable manual P 217 0.1853 50 0.42 93
IV.VTIR.HHZ. 2020-03-23T03:22:29.56 0.1 undecidable manual P 214 0.197 50 -0.07 100
IV.VVDG.HHZ. 2020-03-23T03:22:29.91 0.1 undecidable manual P 220 0.1736 50 0.68 85
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VCRE.HHE. ML:1.9 0.0006415817 1 AML other m 2020-03-23T03:22:32.00
IV.VCRE.HHN. ML:1.5 0.0002077003 0.1408 AML other m 2020-03-23T03:22:32.17
IV.CRTO.HHE. ML:2.2 0.0011910135 0.1392 AML other m 2020-03-23T03:22:32.29
IV.CRTO.HHN. ML:2 0.00078088985 0.1392 AML other m 2020-03-23T03:22:32.21
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