Earthquake with magnitude of ML 1.8 on date 15-08-2020 and time 00:30:35 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 1.8 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 14-08-2020 22:30:35 (UTC)
  • 15-08-2020 00:30:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.7710, 15.6100 at 154 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
64 Km N of Messina (238439 inhabitants)
66 Km W of Lamezia Terme (70714 inhabitants)
74 Km N of Reggio di Calabria (183035 inhabitants)
81 Km SW of Cosenza (67546 inhabitants)
87 Km W of Catanzaro (90612 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.8 2020-08-14
22:30:35
38.7712 15.6098 154 2020-11-19
12:36:58
Bollettino Sismico Italiano INGV 82341381
Reviewed
Rev100
ML 1.8 2020-08-14
22:30:33
38.8578 15.3365 153 2020-08-14
22:43:57
Sala Sismica INGV-Roma 81987571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-14 22:30:35 ± 0.3
Latitude 38.7712 ± 0.0126
Longitude 15.6098 ± 0.0415
Depth (km) 154 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82341381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3576
Semi-minor axis of confidence ellipse (meter) 603
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 101
Circular confidence region, given by single value of horizontal uncertainty (meter) 3580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 178
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.27070
Epicentral distance of station farthest from the epicenter (degree) 1.24286
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 81987571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-14 22:43:57

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 82341381
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-08-26 08:29:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.CUC.HHE. 2020-08-14T22:31:22.91 0.6 undecidable manual S 7 136.7631 136 0 41
IV.CAR1.HHZ. 2020-08-14T22:31:14.92 0.3 undecidable manual S 44 74.4699 152 -0.01 70
MN.CEL.HHZ. 2020-08-14T22:31:14.20 0.6 undecidable manual S 156 61.7937 157 0.45 44
IV.MSRU.HHZ. 2020-08-14T22:31:13.24 0.6 undecidable manual S 189 56.8986 158 -0.11 48
IV.JOPP.HHZ. 2020-08-14T22:31:11.49 0.6 undecidable manual S 127 30.0477 168 -0.19 49
IV.SALB.HHZ. 2020-08-14T22:31:03.70 0.6 undecidable manual P 27 137.9619 135 0.88 32
MN.CUC.HHE. 2020-08-14T22:31:02.40 0.6 undecidable manual P 7 136.7631 136 -0.31 39
IV.PLAC.HHZ. 2020-08-14T22:30:58.32 0.1 positive manual P 116 80.1642 151 -0.13 91
IV.CAR1.HHZ. 2020-08-14T22:30:58.01 0.1 undecidable manual P 44 74.4699 152 -0.11 92
MN.CEL.HHZ. 2020-08-14T22:30:57.24 0.1 undecidable manual P 156 61.7937 157 -0.19 93
IV.MSRU.HHZ. 2020-08-14T22:30:57.31 0.6 positive manual P 189 56.8986 158 0.11 47
IV.JOPP.HHZ. 2020-08-14T22:30:56.33 0.1 undecidable manual P 127 30.0477 168 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.JOPP.HHN. ML:1.9 0.000037190694999999996 0.3072 AML other m 2020-08-14T22:31:12.61
IV.JOPP.HHE. ML:1.8 0.000028845559999999998 0.1664 AML other m 2020-08-14T22:31:13.23
MN.CEL.HHE. ML:1.5 0.000012150975000000001 0.9248 AML other m 2020-08-14T22:31:15.00
MN.CEL.HHN. ML:1.5 0.000017374235000000003 3.4176 AML other m 2020-08-14T22:31:14.36
IV.MSRU.HHN. ML:1.7 0.0000202569635 0.32 AML other m 2020-08-14T22:31:15.22
IV.MSRU.HHE. ML:1.8 0.000025666255999999998 0.256 AML other m 2020-08-14T22:31:14.14
IV.CAR1.HHN. ML:1.8 0.000026084379999999996 0.256 AML other m 2020-08-14T22:31:17.06
IV.CAR1.HHE. ML:2.1 0.00004993334 0.2432 AML other m 2020-08-14T22:31:15.87
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