Earthquake with magnitude of ML 1.7 on date 04-08-2020 and time 05:44:42 (Italy) in region Costa Cilentana (Salerno)

A magnitude ML 1.7 earthquake occured in region: Costa Cilentana (Salerno), on

  • 04-08-2020 03:44:42 (UTC)
  • 04-08-2020 05:44:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.95, 15.24 at 10 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
Centola SA 14 5168 5168
Camerota SA 15 6985 12153
Pisciotta SA 18 2641 14794
San Mauro la Bruca SA 20 603 15397

Municipalities with at least 50000 inhabitants

An earthquake occurred to
77 Km S of Battipaglia (50786 inhabitants)
91 Km SW of Potenza (67122 inhabitants)
91 Km SE of Salerno (135261 inhabitants)
95 Km SE of Cava de' Tirreni (53659 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
Reviewed
Rev100
ML 1.7 2020-08-04
03:44:42
39.95 15.24 10 2020-08-04
03:59:39
Sala Sismica INGV-Roma 81626871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-04 03:44:42 ± 0.35
Latitude 39.95 ± 0.01
Longitude 15.24 ± 0.02
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81626871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1837
Semi-minor axis of confidence ellipse (meter) 572
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 66
Circular confidence region, given by single value of horizontal uncertainty (meter) 1840
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 227
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.01983
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 81626871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-04 03:59:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ZONE.HHZ. 2020-08-04T03:46:28.65 3.0 undecidable manual Pg 8.97 0
IV.EUCT.HNZ. 2020-08-04T03:46:27.97 3.0 undecidable manual Pg 8.54 0
IV.FOSV.EHZ. 2020-08-04T03:46:25.21 3.0 undecidable manual Sg 2.37 0
IV.MNTT.EHZ. 2020-08-04T03:46:13.08 3.0 undecidable manual Sg 1.51 0
IV.ARRO.EHZ. 2020-08-04T03:46:03.16 3.0 undecidable manual Sg -4.64 0
IV.CAR1.HHZ. 2020-08-04T03:45:15.75 0.3 undecidable manual S 133 1.0198 50 0.62 55
IV.CET2.HHZ. 2020-08-04T03:45:05.15 0.3 undecidable manual S 127 0.6898 50 -0.2 66
IX.PST3.HHE. 2020-08-04T03:45:03.30 0.6 undecidable manual S 0 0.6115 50 0.26 44
IV.SGO.HHE. 2020-08-04T03:45:03.16 0.3 undecidable manual S 5 0.6133 50 0.08 68
IV.CAR1.HHZ. 2020-08-04T03:45:02.08 0.1 undecidable manual P 133 1.0198 50 0.82 67
IV.MMN.HHE. 2020-08-04T03:45:02.39 0.3 undecidable manual S 96 0.5765 50 0.4 64
IV.SIRI.HHZ. 2020-08-04T03:45:01.30 0.3 undecidable manual S 64 0.5315 50 0.63 60
IV.GRIS.EHE. 2020-08-04T03:45:00.43 0.3 undecidable manual S 114 0.5126 50 0.32 66
IV.PTRJ.HNZ. 2020-08-04T03:44:58.53 3.0 undecidable manual Pg -7.29 0
MN.CUC.HHZ. 2020-08-04T03:44:57.89 0.3 undecidable manual S 84 0.4407 50 -0.1 71
IV.CET2.HHZ. 2020-08-04T03:44:55.77 0.6 negative manual P 127 0.6898 50 0.16 44
IX.PST3.HHE. 2020-08-04T03:44:54.98 0.1 undecidable manual P 0 0.6115 50 0.7 77
IV.SGO.HHE. 2020-08-04T03:44:54.02 0.3 undecidable manual P 5 0.6133 50 -0.28 65
IV.MGR.HHZ. 2020-08-04T03:44:53.48 0.3 undecidable manual S 51 0.304 50 -0.43 68
IV.MMN.HHE. 2020-08-04T03:44:53.20 0.1 undecidable manual P 96 0.5765 50 -0.47 85
IV.SIRI.HHZ. 2020-08-04T03:44:52.81 1.0 negative manual P 64 0.5315 50 -0.1 23
IV.CSFT.HHZ. 2020-08-04T03:44:51.24 3.0 negative manual P -9.55 0
IV.GRIS.EHE. 2020-08-04T03:44:51.90 0.1 undecidable manual P 114 0.5126 50 -0.68 79
MN.CUC.HHZ. 2020-08-04T03:44:50.64 0.1 undecidable manual P 84 0.4407 50 -0.72 79
IV.BULG.HHZ. 2020-08-04T03:44:50.10 0.3 undecidable manual S 39 0.1655 120 0.46 69
IV.MGR.HHZ. 2020-08-04T03:44:48.31 0.1 positive manual P 51 0.304 50 -0.7 82
IV.BULG.HHZ. 2020-08-04T03:44:46.48 0.1 undecidable manual P 39 0.1655 120 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BULG.HHE. ML:1.8 0.0004951856 0.16 AML other m 2020-08-04T03:44:50.95
IV.BULG.HHN. ML:2 0.00087728875 0.1184 AML other m 2020-08-04T03:44:51.32
IV.BULG.HNE. ML:1.8 0.00045376075 0.1408 AML other m 2020-08-04T03:44:50.95
IV.BULG.HNN. ML:2 0.0008217516 0.1408 AML other m 2020-08-04T03:44:51.32
IV.MGR.HHE. ML:1.5 0.00012987335 0.16 AML other m 2020-08-04T03:44:56.67
IV.MGR.HHN. ML:1.7 0.00020310795 0.1408 AML other m 2020-08-04T03:44:55.31
IV.MGR.HNE. ML:1.6 0.0001531534 0.3488 AML other m 2020-08-04T03:44:55.01
IV.MGR.HNN. ML:1.7 0.00020974534 0.2112 AML other m 2020-08-04T03:44:55.32
MN.CUC.HHE. ML:1.6 9.5078425E-5 0.24 AML other m 2020-08-04T03:45:05.14
MN.CUC.HHN. ML:1.5 8.2214385E-5 0.3616 AML other m 2020-08-04T03:45:05.35
IV.SIRI.HHE. ML:1.6 8.690616E-5 0.3008 AML other m 2020-08-04T03:45:05.63
IV.SIRI.HHN. ML:1.6 8.1130255E-5 0.32 AML other m 2020-08-04T03:45:08.20
IV.SIRI.HNE. ML:1.7 9.6241805E-5 0.32 AML other m 2020-08-04T03:45:05.48
IV.SIRI.HNN. ML:1.6 8.676788E-5 0.3392 AML other m 2020-08-04T03:45:08.20
IV.CET2.HHE. ML:1.7 7.889443E-5 1.12 AML other m 2020-08-04T03:45:07.22
IV.CET2.HHN. ML:2 0.00015956315 0.3392 AML other m 2020-08-04T03:45:07.54
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