ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.8 on date 16-03-2019 and time 05:18:18 (UTC) in region 8 km S Longobucco (CS)

A magnitude ML 1.8 earthquake occured in region: 8 km S Longobucco (CS), on

  • 16-03-2019 05:18:18 (UTC)
  • 16-03-2019 06:18:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 39.38, 16.59 at 17 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
Longobucco CS 8 3183 3183
Bocchigliero CS 15 1298 4481
San Giovanni in Fiore CS 16 17372 21853
Savelli KR 18 1271 23124
Paludi CS 19 1062 24186
Castelsilano KR 19 1015 25201
Cropalati CS 20 1084 26285

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km E of Cosenza (67546 inhabitants)
50 Km NE of Lamezia Terme (70714 inhabitants)
52 Km N of Catanzaro (90612 inhabitants)
57 Km NW of Crotone (62178 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 1.8 2019-03-16
05:18:18
39.38 16.59 17 2019-03-16
06:32:10
Sala Sismica INGV-Roma 66580551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-16 05:18:18 ± 0.14
Latitude 39.38 ± 0.01
Longitude 16.59 ± 0.01
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 66580551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 646
Semi-minor axis of confidence ellipse (meter) 269
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 301
Circular confidence region, given by single value of horizontal uncertainty (meter) 650
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.06835
Epicentral distance of station farthest from the epicenter (degree) 0.69068
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 66580551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-16 06:32:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TDS.HHZ. 2019-03-16T05:18:31.40 0.6 undecidable manual S 326 0.3435 103 0.06 47
IV.MMN.HHE. 2019-03-16T05:18:31.26 0.6 undecidable manual P 318 0.6907 95 -0.52 40
IV.CAR1.HHZ. 2019-03-16T05:18:30.72 0.3 undecidable manual S 247 0.3175 105 0.14 69
IV.PIPA.HHZ. 2019-03-16T05:18:28.00 0.3 undecidable manual S 58 0.205 116 0.55 66
IV.SALB.HHZ. 2019-03-16T05:18:28.56 0.6 undecidable manual P 339 0.5342 97 -0.56 40
MN.TIP.HHZ. 2019-03-16T05:18:27.93 0.3 undecidable manual S 147 0.2356 112 -0.36 68
IV.SPS2.HHZ. 2019-03-16T05:18:27.70 0.1 undecidable manual S 246 0.2122 115 0.06 95
IV.TDS.HHZ. 2019-03-16T05:18:26.16 0.3 undecidable manual P 326 0.3435 103 0.25 68
IV.CAR1.HHZ. 2019-03-16T05:18:25.53 0.3 undecidable manual P 247 0.3175 105 0.05 70
MN.TIP.HHZ. 2019-03-16T05:18:24.24 0.1 undecidable manual P 147 0.2356 112 0.09 95
IV.CELI.HHZ. 2019-03-16T05:18:24.11 0.3 undecidable manual S 293 0.0683 152 -0.35 69
IV.SPS2.HHZ. 2019-03-16T05:18:23.98 0.1 undecidable manual P 246 0.2122 115 0.2 93
IV.PIPA.HHZ. 2019-03-16T05:18:23.47 0.3 undecidable manual P 58 0.205 116 -0.2 70
IV.CELI.HHZ. 2019-03-16T05:18:21.96 0.1 undecidable manual P 293 0.0683 152 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIPA.HHE. ML:2.2 0.0008894269 0.24 AML other m 2019-03-16T05:18:29.88
IV.PIPA.HHN. ML:2.1 0.0007508236 0.2592 AML other m 2019-03-16T05:18:30.34
IV.PIPA.HNE. ML:2.2 0.0008470324 0.2624 AML other m 2019-03-16T05:18:29.88
IV.PIPA.HNN. ML:2.1 0.00070670635 0.2496 AML other m 2019-03-16T05:18:30.34
IV.SPS2.HHE. ML:1.9 0.00042600745 0.2816 AML other m 2019-03-16T05:18:28.32
IV.SPS2.HHN. ML:1.9 0.000425266 0.32 AML other m 2019-03-16T05:18:28.34
MN.TIP.HHE. ML:1.4 0.0001229854 0.4 AML other m 2019-03-16T05:18:28.98
MN.TIP.HHN. ML:1.2 8.4740815E-5 0.2016 AML other m 2019-03-16T05:18:28.75
MN.TIP.HNE. ML:1.3 9.22849415E-5 0.2016 AML other m 2019-03-16T05:18:28.18
MN.TIP.HNN. ML:1.2 7.6586965E-5 0.3392 AML other m 2019-03-16T05:18:29.83
IV.CAR1.HNE. ML:1.9 0.00031131065 0.3616 AML other m 2019-03-16T05:18:34.81
IV.CAR1.HNN. ML:1.8 0.000212710152 0.3008 AML other m 2019-03-16T05:18:33.59
IV.CAR1.HHE. ML:2 0.00034717975 0.3808 AML other m 2019-03-16T05:18:34.98
IV.CAR1.HHN. ML:1.8 0.0002302126 0.6976 AML other m 2019-03-16T05:18:34.49
IV.TDS.HHE. ML:1.5 9.9835995E-5 0.3968 AML other m 2019-03-16T05:18:35.41
IV.TDS.HHN. ML:1.4 7.286856E-5 0.24 AML other m 2019-03-16T05:18:33.74
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