Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 23-04-2020 and time 06:47:30 (Italy) in region Costa Calabra sud orientale (Reggio di Calabria)

A magnitude ML 2.1 earthquake occured in region: Costa Calabra sud orientale (Reggio di Calabria), on

  • 23-04-2020 04:47:30 (UTC)
  • 23-04-2020 06:47:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.1150, 16.1650 at 16 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Bianco RC 3 4273 4273
Bovalino RC 4 8905 13178
Casignana RC 7 759 13937
Caraffa del Bianco RC 7 539 14476
Sant'Agata del Bianco RC 8 592 15068
Africo RC 8 3075 18143
Careri RC 8 2360 20503
Benestare RC 8 2556 23059
Ardore RC 9 5088 28147
San Luca RC 9 3881 32028
Samo RC 10 809 32837
Ferruzzano RC 11 772 33609
Sant'Ilario dello Ionio RC 12 1377 34986
Portigliola RC 13 1201 36187
Bruzzano Zeffirio RC 13 1111 37298
Ciminà RC 15 568 37866
Platì RC 16 3812 41678
Locri RC 16 12504 54182
Staiti RC 17 248 54430
Brancaleone RC 17 3584 58014
Antonimina RC 18 1317 59331
Gerace RC 18 2652 61983

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km E of Reggio di Calabria (183035 inhabitants)
54 Km E of Messina (238439 inhabitants)
96 Km SW of Catanzaro (90612 inhabitants)
97 Km S of Lamezia Terme (70714 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 2.1 2020-04-23
04:47:30		 38.1148 16.1648 16 2020-07-18
21:08:38		 Bollettino Sismico Italiano INGV 79659451
Reviewed
Rev100 		ML 2.2 2020-04-23
04:47:30		 38.1358 16.1608 10 2020-04-23
04:52:08		 Sala Sismica INGV-Roma 78489761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-23 04:47:30 ± 0.1
Latitude 38.1148 ± 0.0045
Longitude 16.1648 ± 0.0069
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 79659451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 572
Semi-minor axis of confidence ellipse (meter) 236
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 128
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 211
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.09623
Epicentral distance of station farthest from the epicenter (degree) 0.74734
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.4
Num. used stations 20
Type of magnitude ML
Reference to an origin 79659451
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-07-12 20:58:04

ML:2.2

Field Value
Value 2.2
Uncertainty 0.4
Num. used stations 18
Type of magnitude ML
Reference to an origin 78489761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-23 04:52:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MPNC.HHZ. 2020-04-23T04:47:52.35 0.6 undecidable manual S 273 70.9734 95 0.27 44
IV.JOPP.HHZ. 2020-04-23T04:47:49.12 0.6 undecidable manual S 336 59.6958 96 0.01 47
IV.MSRU.HHZ. 2020-04-23T04:47:49.22 0.6 undecidable manual S 286 59.5959 96 0.16 46
IV.PLAC.HHZ. 2020-04-23T04:47:45.30 0.6 undecidable manual S 33 44.1225 99 0.34 46
IV.SICLA.EHZ. 2020-04-23T04:47:44.40 0.6 undecidable manual S 292 42.3243 99 -0.09 48
IV.GRI.EHN. 2020-04-23T04:47:44.46 0.3 undecidable manual P 16 81.5517 94 -0.19 66
IV.AIO.HHZ. 2020-04-23T04:47:44.90 0.3 undecidable manual P 259 82.9503 94 0.04 68
IV.MTTG.HHZ. 2020-04-23T04:47:44.99 0.6 undecidable manual S 253 42.4242 99 0.46 45
IT.RCU.HGZ. 2020-04-23T04:47:44.68 0.6 undecidable manual S 271 43.5231 99 -0.13 48
IV.FERC.HNN. 2020-04-23T04:47:43.72 0.6 undecidable manual S 355 37.629 101 0.46 45
IV.MPNC.HHZ. 2020-04-23T04:47:42.77 0.3 undecidable manual P 273 70.9734 95 -0.25 66
IV.MSRU.HHZ. 2020-04-23T04:47:40.85 0.3 undecidable manual P 286 59.5959 96 -0.43 65
IV.JOPP.HHZ. 2020-04-23T04:47:40.87 0.1 positive manual P 336 59.6958 96 -0.43 87
MN.CEL.HHZ. 2020-04-23T04:47:40.88 0.1 undecidable manual S 304 28.6491 106 -0.04 100
IV.MTTG.HHZ. 2020-04-23T04:47:38.81 0.1 positive manual P 253 42.4242 99 0.15 96
IV.FERC.HNN. 2020-04-23T04:47:38.09 0.3 undecidable manual P 355 37.629 101 0.17 72
IT.RCU.HGZ. 2020-04-23T04:47:38.80 0.3 undecidable manual P 271 43.5231 99 -0.02 73
IV.SICLA.EHZ. 2020-04-23T04:47:38.44 0.1 positive manual P 292 42.3243 99 -0.19 94
IV.PLAC.HHZ. 2020-04-23T04:47:38.90 0.1 positive manual P 33 44.1225 99 -0.01 97
IV.SOI.EHN. 2020-04-23T04:47:36.71 0.3 undecidable manual S 244 10.6782 139 -0.09 76
MN.CEL.HHZ. 2020-04-23T04:47:36.66 0.1 positive manual P 304 28.6491 106 0.09 99
IV.SOI.EHN. 2020-04-23T04:47:34.43 0.1 undecidable manual P 244 10.6782 139 0.23 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.CEL.HNN. ML:2.7 0.0022863345000000003 0.4 AML other m 2020-04-23T04:47:41.06
MN.CEL.HHN. ML:2.7 0.0023071485000000004 0.4 AML other m 2020-04-23T04:47:41.06
MN.CEL.HHE. ML:2.7 0.0023051219999999997 0.5792 AML other m 2020-04-23T04:47:41.30
MN.CEL.HNE. ML:2.7 0.002352604 0.5792 AML other m 2020-04-23T04:47:41.31
IV.SICLA.EHN. ML:2.5 0.0009721339 0.2592 AML other m 2020-04-23T04:47:45.08
IV.SICLA.EHE. ML:2.3 0.0006582402 0.32 AML other m 2020-04-23T04:47:45.34
IV.MTTG.HHE. ML:1.9 0.00025723275 0.48 AML other m 2020-04-23T04:47:45.58
IV.MTTG.HHN. ML:1.9 0.000248 0.66 AML other m 2020-04-23T04:47:46.26
IV.PLAC.HHN. ML:1.6 0.0001045022 0.3808 AML other m 2020-04-23T04:47:48.87
IV.PLAC.HNE. ML:1.5 0.00010080639999999998 0.4192 AML other m 2020-04-23T04:47:50.38
IV.MSRU.HHN. ML:2.4 0.000486 0.4 AML other m 2020-04-23T04:47:50.61
IV.JOPP.HHN. ML:1.8 0.000114007145 0.16 AML other m 2020-04-23T04:47:50.52
IV.MSRU.HHE. ML:2.5 0.0006395 1.64 AML other m 2020-04-23T04:47:50.83
IV.JOPP.HHE. ML:1.7 0.000106114175 0.96 AML other m 2020-04-23T04:47:51.96
IV.MPNC.HHE. ML:2.2 0.00023664565 0.1824 AML other m 2020-04-23T04:47:53.69
IV.PLAC.HNN. ML:1.6 0.00011404847500000002 0.3776 AML other m 2020-04-23T04:47:53.79
IV.PLAC.HHE. ML:1.6 0.000129468 0.3968 AML other m 2020-04-23T04:47:53.78
IV.MPNC.HHN. ML:2.3 0.00034899999999999997 1.18 AML other m 2020-04-23T04:47:55.06
IV.AIO.HHE. ML:1.7 0.000071035365 0.3008 AML other m 2020-04-23T04:47:57.71
IV.AIO.HHN. ML:1.8 0.0000804 0.74 AML other m 2020-04-23T04:48:03.56
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
Waveforms Seismic signals in miniseed + resp format Download