Earthquake with magnitude of ML 1.9 on date 20-01-2021 and time 04:05:39 (Italy) in region Mar Ionio Settentrionale (MARE)

A magnitude ML 1.9 earthquake occured in region: Mar Ionio Settentrionale (MARE), on

  • 20-01-2021 03:05:39 (UTC)
  • 20-01-2021 04:05:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.99, 16.68 at 37 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
92 Km E of Reggio di Calabria (183035 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 1.9 2021-01-20
03:05:39
37.99 16.69 37 2021-01-20
03:17:21
Sala Sismica INGV-Roma 86388551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-20 03:05:39 ± 0.24
Latitude 37.99 ± 0.01
Longitude 16.69 ± 0.02
Depth (km) 37 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86388551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1737
Semi-minor axis of confidence ellipse (meter) 1011
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 310
Circular confidence region, given by single value of horizontal uncertainty (meter) 1740
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 270
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 3.09637
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 86388551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-20 03:17:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PLMA.HHZ. 2021-01-20T03:07:31.71 3.0 negative manual Pn -2 0
IV.EL6.EHZ. 2021-01-20T03:07:28.34 3.0 undecidable manual Pg 21.940001 0
IV.MRVN.HHZ. 2021-01-20T03:06:26.55 0.6 undecidable manual P 353 3.0964 54 -0.44 12
IV.MTGR.HHZ. 2021-01-20T03:06:25.83 3.0 undecidable manual Pn -0.74 0
IV.AMUR.HHZ. 2021-01-20T03:06:23.94 0.6 undecidable manual P 359 2.9201 54 -0.62 12
IV.HLNI.HHZ. 2021-01-20T03:06:23.48 3.0 undecidable manual Sn -2.1 0
IV.HCRL.HHZ. 2021-01-20T03:06:21.14 3.0 undecidable manual Sn -2.2 0
IV.SSY.HHZ. 2021-01-20T03:06:21.92 3.0 undecidable manual Sn -2.13 0
IV.NOCI.HHZ. 2021-01-20T03:06:21.80 1.0 undecidable manual P 6 2.8167 54 -1.32 4
IV.MIGL.HHZ. 2021-01-20T03:06:20.79 1.0 positive manual P 356 2.6233 54 0.33 7
OT.TAR1.HHZ. 2021-01-20T03:06:18.84 0.1 positive manual P 10 2.5802 54 -1.02 24
IV.CMPR.HHZ. 2021-01-20T03:06:15.56 3.0 undecidable manual Pn -3.72 0
IV.RAFF.HHZ. 2021-01-20T03:06:11.19 3.0 negative manual Pn 0.22 0
IV.HPAC.HHZ. 2021-01-20T03:06:09.11 3.0 undecidable manual Pn 0.89 0
IV.HMDC.HHZ. 2021-01-20T03:06:08.78 3.0 negative manual Pn 0.36 0
IV.HAVL.HHZ. 2021-01-20T03:06:05.50 3.0 positive manual Pn 0.17 0
IV.PIPA.HHE. 2021-01-20T03:06:05.86 0.6 undecidable manual P 4 1.5019 54 0.9 29
IV.SSY.HHZ. 2021-01-20T03:06:04.17 3.0 negative manual Pn -0.13 0
IV.HLNI.HHZ. 2021-01-20T03:06:04.81 3.0 positive manual Pn -0.35 0
IV.CELI.HHE. 2021-01-20T03:06:04.22 0.6 undecidable manual P 355 1.4227 54 0.35 37
MN.CEL.HHZ. 2021-01-20T03:06:03.66 0.3 undecidable manual S 294 0.6799 54 0.05 72
IV.IVPL.HHZ. 2021-01-20T03:06:03.26 3.0 positive manual Pn -0.12 0
IV.HCRL.HHZ. 2021-01-20T03:06:03.89 3.0 undecidable manual Pn -0.01 0
IV.HAGA.HHZ. 2021-01-20T03:06:02.43 3.0 undecidable manual Pn -0.26 0
MN.TIP.HHE. 2021-01-20T03:06:00.89 0.3 undecidable manual P 3 1.1943 54 0.17 63
IV.PLAC.HHZ. 2021-01-20T03:05:59.17 0.3 undecidable manual S 337 0.5018 119 0.01 75
IV.SOI.EHZ. 2021-01-20T03:05:59.14 0.3 undecidable manual S 280 0.5045 119 -0.07 74
IV.MPNC.HHZ. 2021-01-20T03:05:59.28 3.0 negative manual Pn 0.54 0
IV.SERS.HHE. 2021-01-20T03:05:58.91 0.3 undecidable manual P 0 1.0495 54 0.19 64
IV.SELL.HHE. 2021-01-20T03:05:57.40 0.6 undecidable manual P 357 0.9973 54 -0.6 39
IV.MSRU.HHZ. 2021-01-20T03:05:57.68 3.0 negative manual Pn 0.16 0
IV.JOPP.HHZ. 2021-01-20T03:05:56.13 0.1 undecidable manual P 315 0.8822 54 -0.28 88
IV.GRI.EHE. 2021-01-20T03:05:56.23 0.3 undecidable manual P 346 0.8607 54 0.12 68
IV.FERC.HNE. 2021-01-20T03:05:53.05 0.3 undecidable manual P 317 0.6394 54 0 73
MN.CEL.HHZ. 2021-01-20T03:05:53.71 0.1 negative manual P 294 0.6799 54 0.1 95
IV.SOI.EHZ. 2021-01-20T03:05:51.13 0.1 undecidable manual P 280 0.5045 119 0.06 100
IV.PLAC.HHZ. 2021-01-20T03:05:51.07 0.1 undecidable manual P 337 0.5018 119 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PLAC.HHN. ML:1.8 0.000115 0.96 AML other m 2021-01-20T03:05:59.60
IV.SOI.EHN. ML:1.6 6.96E-5 1.44 AML other m 2021-01-20T03:06:00.95
IV.SOI.EHE. ML:1.5 6.12E-5 0.78 AML other m 2021-01-20T03:06:01.47
IV.PLAC.HHE. ML:1.7 8.63E-5 0.3 AML other m 2021-01-20T03:06:01.60
MN.CEL.HHN. ML:1.7 6.805E-5 0.42 AML other m 2021-01-20T03:06:04.22
MN.CEL.HHE. ML:1.9 9.51E-5 0.78 AML other m 2021-01-20T03:06:04.55
IV.MSRU.HHE. ML:2 8.325E-5 0.9 AML other m 2021-01-20T03:06:11.27
IV.MSRU.HHN. ML:2 8.26E-5 0.56 AML other m 2021-01-20T03:06:11.44
IV.MPNC.HHN. ML:2.3 0.0001375 1.38 AML other m 2021-01-20T03:06:15.11
IV.MPNC.HHE. ML:2.2 0.0001076 1.7 AML other m 2021-01-20T03:06:15.13
IV.NOCI.HHE. ML:2.6 4.1E-5 1.14 AML other m 2021-01-20T03:06:53.66
IV.NOCI.HHN. ML:2.6 4.3E-5 1.28 AML other m 2021-01-20T03:06:55.97
IV.MTGR.HHE. ML:3.6 0.000329 0.56 AML other m 2021-01-20T03:07:10.56
IV.MTGR.HHN. ML:3.7 0.000415 0.6 AML other m 2021-01-20T03:07:17.60
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