INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.7 on date 09-08-2018 and time 14:43:32 (Italy) in region 3 km S Crotone (KR)

A magnitude ML 1.7 earthquake occured in region: 3 km S Crotone (KR), on

  • 09-08-2018 12:43:32 (UTC)
  • 09-08-2018 14:43:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.05, 17.12 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
Crotone KR 3 62178 62178
Isola di Capo Rizzuto KR 11 17643 79821
Cutro KR 12 10541 90362
Scandale KR 16 3169 93531
San Mauro Marchesato KR 18 2157 95688
Rocca di Neto KR 19 5687 101375

Municipalities with at least 50000 inhabitants

An earthquake occurred to
3 Km S of Crotone (62178 inhabitants)
49 Km E of Catanzaro (90612 inhabitants)
70 Km E of Lamezia Terme (70714 inhabitants)
79 Km E 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
Rev 100 ML 1.7 2018-08-09
12:43:32
39.05 17.12 10 2018-08-09
12:54:03
Sala Sismica INGV-Roma 59553541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-09 12:43:32 ± 0.27
Latitude 39.05 ± 0.01
Longitude 17.12 ± 0.02
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 59553541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1510
Semi-minor axis of confidence ellipse (meter) 830
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 300
Circular confidence region, given by single value of horizontal uncertainty (meter) 1510
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 293
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.25631
Epicentral distance of station farthest from the epicenter (degree) 0.73475
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 59553541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-09 12:54:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAR1.HHZ. 2018-08-09T12:43:47.12 0.6 negative manual P 286 0.7347 50 0.3 44
IV.SERS.HHZ. 2018-08-09T12:43:45.37 0.6 undecidable manual S 267 0.3381 50 -0.05 51
MN.TIP.HHZ. 2018-08-09T12:43:44.72 0.6 undecidable manual S 294 0.3103 50 0.14 50
IV.LADO.EHZ. 2018-08-09T12:43:42.79 0.6 undecidable manual S 334 0.2563 50 -0.18 50
MN.TIP.HHZ. 2018-08-09T12:43:39.42 0.6 positive manual P 294 0.3103 50 -0.13 50
IV.SERS.HHZ. 2018-08-09T12:43:39.93 0.1 negative manual P 267 0.3381 50 -0.1 100
IV.LADO.EHZ. 2018-08-09T12:43:38.73 0.3 positive manual P 334 0.2563 50 0.11 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.TIP.HHN. ML:1.9 0.000303 0.42 AML other m 2018-08-09T12:43:45.21
MN.TIP.HNN. ML:1.8 0.0002295 0.42 AML other m 2018-08-09T12:43:45.21
MN.TIP.HHE. ML:1.9 0.000305 1.08 AML other m 2018-08-09T12:43:45.56
MN.TIP.HNE. ML:1.8 0.0002415 1.08 AML other m 2018-08-09T12:43:45.02
IV.LADO.EHE. ML:0.8 2.955E-5 0.24 AML other m 2018-08-09T12:43:45.82
IV.SERS.HHN. ML:2.1 0.000429 0.52 AML other m 2018-08-09T12:43:45.79
IV.SERS.HNE. ML:2.1 0.000456 0.5 AML other m 2018-08-09T12:43:45.79
IV.LADO.EHN. ML:0.8 2.925E-5 0.28 AML other m 2018-08-09T12:43:46.14
IV.SERS.HNN. ML:1.9 0.000281 0.32 AML other m 2018-08-09T12:43:46.58
IV.SERS.HHE. ML:1.9 0.0002955 0.32 AML other m 2018-08-09T12:43:46.58
IV.CAR1.HHN. ML:2.1 0.0001575 0.44 AML other m 2018-08-09T12:44:02.68
IV.CAR1.HHE. ML:2 0.0001415 0.6 AML other m 2018-08-09T12:44:02.39
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