Earthquake with magnitude of ML 1.0 on date 20-08-2016 and time 12:40:47 (Italy) in region Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria)

A magnitude ML 1.0 earthquake occured in region: Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria), on

  • 20-08-2016 10:40:47 (UTC)
  • 20-08-2016 12:40:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.45, 15.87 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
Gioia Tauro RC 4 19864 19864
San Ferdinando RC 6 4490 24354
Rizziconi RC 9 7829 32183
Palmi RC 11 18930 51113
Rosarno RC 11 14841 65954
Nicotera VV 12 6290 72244
Seminara RC 13 2811 75055
Limbadi VV 14 3695 78750
Joppolo VV 15 1926 80676
MelicuccĂ  RC 17 930 81606
Melicucco RC 17 5101 86707
Taurianova RC 17 15636 102343
Feroleto della Chiesa RC 18 1695 104038
San Calogero VV 18 4315 108353
Varapodio RC 18 2160 110513
Polistena RC 19 10496 121009
Anoia RC 19 2212 123221
Terranova Sappo Minulio RC 19 523 123744
San Procopio RC 19 534 124278
Ricadi VV 19 4900 129178
Laureana di Borrello RC 19 5174 134352
Bagnara Calabra RC 20 10255 144607
Spilinga VV 20 1464 146071
Rombiolo VV 20 4569 150640
Candidoni RC 20 416 151056

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km NE of Messina (238439 inhabitants)
43 Km NE of Reggio di Calabria (183035 inhabitants)
70 Km SW of Lamezia Terme (70714 inhabitants)
81 Km SW of Catanzaro (90612 inhabitants)
99 Km SW of Cosenza (67546 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 1.0 2016-08-20
10:40:47
38.45 15.87 10 2016-08-20
10:48:47
Sala Sismica INGV-Roma 26904441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-08-20 10:40:47 ± 0.17
Latitude 38.45 ± 0.01
Longitude 15.87 ± 0.01
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 26904441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 822
Semi-minor axis of confidence ellipse (meter) 488
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 176
Circular confidence region, given by single value of horizontal uncertainty (meter) 820
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 200
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.5306
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 26904441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-08-20 10:48:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CET2.HHZ. 2016-08-20T10:41:21.99 3.0 undecidable manual S 0.02 0
IV.PLAC.HHZ. 2016-08-20T10:41:03.92 0.6 undecidable manual S 90 0.447 50 0.13 47
IV.SOI.EHZ. 2016-08-20T10:41:02.79 0.6 undecidable manual S 159 0.4074 50 0.16 47
IV.MSRU.HHZ. 2016-08-20T10:41:00.84 0.6 undecidable manual S 236 0.3399 50 0.22 47
IV.MILZ.HHE. 2016-08-20T10:40:58.61 0.6 undecidable manual P 250 0.5306 50 0.13 46
IV.MSCL.HHE. 2016-08-20T10:40:57.15 0.6 undecidable manual S 195 0.2293 111 -0.12 49
IV.MPNC.HHZ. 2016-08-20T10:40:57.78 0.3 positive manual P 233 0.5072 50 -0.29 67
IV.SOI.EHZ. 2016-08-20T10:40:56.15 0.1 undecidable manual P 159 0.4074 50 -0.21 93
IV.PLAC.HHZ. 2016-08-20T10:40:56.92 0.6 undecidable manual P 90 0.447 50 -0.11 47
IV.MSRU.HHZ. 2016-08-20T10:40:55.20 0.1 undecidable manual P 236 0.3399 50 0 98
MN.CEL.HHZ. 2016-08-20T10:40:55.94 0.1 undecidable manual S 174 0.1943 114 -0.07 100
IV.MSCL.HHE. 2016-08-20T10:40:53.43 0.6 undecidable manual P 195 0.2293 111 0.16 49
MN.CEL.HHZ. 2016-08-20T10:40:52.74 0.1 undecidable manual P 174 0.1943 114 0.2 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.CEL.HHN. ML:1.1 7.8E-5 0.22 AML other m 2016-08-20T10:40:56.25
MN.CEL.HHE. ML:1 7.225E-5 1.16 AML other m 2016-08-20T10:40:56.34
IV.PLAC.HHN. ML:1.1 3.495E-5 0.62 AML other m 2016-08-20T10:41:06.05
IV.PLAC.HHE. ML:1 2.66E-5 0.58 AML other m 2016-08-20T10:41:06.60
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