Earthquake with magnitude of ML 0.9 on date 14-04-2019 and time 04:04:20 (UTC) in region 4 km W Sant'Arsenio (SA)

A magnitude ML 0.9 earthquake occured in region: 4 km W Sant'Arsenio (SA), on

  • 14-04-2019 04:04:20 (UTC)
  • 14-04-2019 06:04:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.48, 15.44 at 18 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'Arsenio SA 4 2815 2815
San Pietro al Tanagro SA 5 1695 4510
San Rufo SA 5 1754 6264
Polla SA 6 5279 11543
Corleto Monforte SA 6 592 12135
Pertosa SA 8 690 12825
Sant'Angelo a Fasanella SA 8 635 13460
Petina SA 9 1159 14619
Auletta SA 9 2336 16955
Atena Lucana SA 10 2336 19291
Ottati SA 11 618 19909
Caggiano SA 11 2765 22674
Roscigno SA 12 817 23491
Sacco SA 12 492 23983
Bellosguardo SA 12 794 24777
Sant'Angelo Le Fratte PZ 13 1429 26206
Salvitelle SA 13 560 26766
Teggiano SA 14 7976 34742
Savoia di Lucania PZ 14 1127 35869
Sicignano degli Alburni SA 15 3519 39388
Sala Consilina SA 15 12664 52052
Vietri di Potenza PZ 15 2832 54884
Piaggine SA 16 1311 56195
Valle dell'Angelo SA 16 248 56443
Brienza PZ 16 4078 60521
Aquara SA 16 1545 62066
Romagnano al Monte SA 17 368 62434
Monte San Giacomo SA 17 1572 64006
Laurino SA 18 1548 65554
Castelcivita SA 18 1739 67293
Sassano SA 18 5013 72306
Satriano di Lucania PZ 18 2374 74680
Buccino SA 19 5047 79727
Castel San Lorenzo SA 19 2471 82198
Postiglione SA 20 2151 84349
Felitto SA 20 1283 85632

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SW of Potenza (67122 inhabitants)
41 Km E of Battipaglia (50786 inhabitants)
62 Km E of Salerno (135261 inhabitants)
67 Km E of Cava de' Tirreni (53659 inhabitants)
73 Km SE of Avellino (54857 inhabitants)
83 Km E of Scafati (50787 inhabitants)
85 Km E of Castellammare di Stabia (66466 inhabitants)
92 Km SE of Benevento (60091 inhabitants)
96 Km SW of Cerignola (58396 inhabitants)
97 Km E of Torre del Greco (86275 inhabitants)
100 Km E of Portici (55274 inhabitants)
100 Km E of Ercolano (53709 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 0.9 2019-04-14
04:04:20
40.48 15.44 18 2019-04-14
04:09:26
Sala Sismica INGV-Roma 67560881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-14 04:04:20 ± 0.21
Latitude 40.48 ± 0.01
Longitude 15.44 ± 0.00
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 67560881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 748
Semi-minor axis of confidence ellipse (meter) 690
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 182
Circular confidence region, given by single value of horizontal uncertainty (meter) 750
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.10432
Epicentral distance of station farthest from the epicenter (degree) 0.31296
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 67560881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-14 04:09:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MCEL.HHZ. 2019-04-14T04:04:33.31 0.6 undecidable manual S 119 0.313 106 0.37 44
IV.CMPR.HHZ. 2019-04-14T04:04:29.48 0.3 undecidable manual S 214 0.1889 121 -0.06 74
IV.SLCN.HHZ. 2019-04-14T04:04:29.08 0.3 undecidable manual S 120 0.1691 124 0.03 74
IX.STN3.HHZ.02 2019-04-14T04:04:28.96 0.3 undecidable manual S 71 0.1691 124 -0.09 73
IV.CDRU.HHZ. 2019-04-14T04:04:27.87 0.3 undecidable manual S 278 0.1043 141 0.24 72
IV.MCEL.HHZ. 2019-04-14T04:04:27.94 0.1 undecidable manual P 119 0.313 106 0.07 95
IX.STN3.HHZ.02 2019-04-14T04:04:25.38 0.1 undecidable manual P 71 0.1691 124 -0.25 94
IV.SLCN.HHZ. 2019-04-14T04:04:25.54 0.3 positive manual P 120 0.1691 124 -0.09 73
IV.CMPR.HHZ. 2019-04-14T04:04:25.86 0.1 undecidable manual P 214 0.1889 121 -0.05 98
IV.CDRU.HHZ. 2019-04-14T04:04:24.86 0.1 positive manual P 278 0.1043 141 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CDRU.HHE. ML:1.2 0.0001294 1.84 AML other m 2019-04-14T04:04:27.05
IV.CDRU.HHN. ML:1 7.875E-5 0.26 AML other m 2019-04-14T04:04:28.05
IV.CMPR.HHN. ML:0.6 2.52E-5 0.4 AML other m 2019-04-14T04:04:32.50
IV.CMPR.HHE. ML:0.8 3.7E-5 0.4 AML other m 2019-04-14T04:04:32.51
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