Earthquake with magnitude of ML 1.9 on date 23-03-2020 and time 21:20:41 (Italy) in region 1 km SE Brognaturo (VV)

A magnitude ML 1.9 earthquake occured in region: 1 km SE Brognaturo (VV), on

  • 23-03-2020 20:20:41 (UTC)
  • 23-03-2020 21:20:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.6, 16.36 at 10 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Brognaturo VV 1 735 735
Spadola VV 2 825 1560
Simbario VV 2 966 2526
Serra San Bruno VV 3 6734 9260
Cardinale CZ 6 2188 11448
Torre di Ruggiero CZ 7 1033 12481
Vallelonga VV 8 706 13187
Mongiana VV 10 740 13927
Pizzoni VV 10 1143 15070
San Nicola da Crissa VV 10 1335 16405
Vazzano VV 10 1067 17472
Sorianello VV 11 1176 18648
Soriano Calabro VV 11 2421 21069
Chiaravalle Centrale CZ 11 5759 26828
Gerocarne VV 12 2248 29076
Argusto CZ 12 522 29598
Capistrano VV 12 1042 30640
San Sostene CZ 13 1370 32010
Davoli CZ 13 5607 37617
Arena VV 13 1456 39073
Fabrizia VV 13 2195 41268
Gagliato CZ 13 505 41773
Nardodipace VV 13 1305 43078
San Vito sullo Ionio CZ 14 1811 44889
Satriano CZ 14 3448 48337
Dasà VV 14 1208 49545
Isca sullo Ionio CZ 14 1633 51178
Filogaso VV 14 1417 52595
Cenadi CZ 15 563 53158
Monterosso Calabro VV 15 1729 54887
Acquaro VV 15 2484 57371
Bivongi RC 15 1398 58769
Badolato CZ 15 3085 61854
Sant'Andrea Apostolo dello Ionio CZ 16 1937 63791
Pazzano RC 16 568 64359
Olivadi CZ 16 529 64888
Petrizzi CZ 16 1131 66019
Santa Caterina dello Ionio CZ 16 2175 68194
Centrache CZ 16 401 68595
Stilo RC 16 2622 71217
Guardavalle CZ 17 4560 75777
Polia VV 18 1023 76800
Montepaone CZ 19 5282 82082
Maierato VV 19 2188 84270
Palermiti CZ 19 1213 85483
Dinami VV 19 2168 87651
Soverato CZ 20 9204 96855

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km SW of Catanzaro (90612 inhabitants)
43 Km S of Lamezia Terme (70714 inhabitants)
78 Km S of Cosenza (67546 inhabitants)
82 Km NE of Reggio di Calabria (183035 inhabitants)
83 Km NE of Messina (238439 inhabitants)
86 Km SW of Crotone (62178 inhabitants)
Recent and historical seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event *

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
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
Bulletin
Rev1000
ML 1.9 2020-03-23
20:20:41
38.6 16.36 10 2020-07-18
21:08:30
Bollettino Sismico Italiano INGV 77761991
Reviewed
Rev100
ML 2.4 2020-03-23
20:20:41
38.6 16.35 10 2020-03-23
20:35:24
Sala Sismica INGV-Roma 77515891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-23 20:20:41 ± 0.05
Latitude 38.60 ± 0.00
Longitude 16.36 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77761991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 434
Semi-minor axis of confidence ellipse (meter) 153
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 110
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 126
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 20
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
Epicentral distance of station farthest from the epicenter (degree) 0.74104
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 77761991
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-04-01 15:25:24

ML:2.4

Field Value
Value 2.4
Uncertainty 0
Num. used stations 4
Type of magnitude ML
Reference to an origin 77515891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-23 20:35:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SALB.HHZ. 2020-03-23T20:21:20.56 3.0 undecidable manual S -2.67 0
IV.GMB.BHZ. 2020-03-23T20:21:02.30 0.3 undecidable manual S 224 0.5936 50 0.16 67
MN.CEL.HHZ. 2020-03-23T20:20:59.10 0.3 undecidable manual S 227 0.4919 50 -0.04 70
XK.GIZZ.HHZ. 2020-03-23T20:20:56.20 0.1 undecidable manual S 343 0.4011 50 -0.24 92
IV.JOPP.HHZ. 2020-03-23T20:20:55.80 0.3 undecidable manual S 272 0.3669 50 0.37 67
IV.CAR1.HHZ. 2020-03-23T20:20:55.14 0.3 undecidable manual P 350 0.6673 50 0.35 64
IV.MSRU.HHZ. 2020-03-23T20:20:55.97 0.6 undecidable manual P 244 0.741 50 -0.08 44
IV.GMB.BHZ. 2020-03-23T20:20:53.33 0.3 undecidable manual P 224 0.5936 50 -0.2 67
IV.SOI.EHN. 2020-03-23T20:20:52.95 0.6 undecidable manual P 204 0.5729 50 -0.21 45
IV.SERS.HHZ. 2020-03-23T20:20:51.98 0.3 undecidable manual P 30 0.5117 50 -0.14 69
XK.SELL.HHZ. 2020-03-23T20:20:51.03 0.1 undecidable manual P 29 0.4425 50 0.1 94
MN.CEL.HHZ. 2020-03-23T20:20:51.68 0.3 undecidable manual P 227 0.4919 50 -0.12 69
IV.GRI.EHZ. 2020-03-23T20:20:51.30 0.1 undecidable manual S 13 0.232 110 -0.02 99
XK.ALB1.HHE. 2020-03-23T20:20:51.40 0.3 undecidable manual P 24 0.4676 50 0.02 71
IV.FERC.HNE. 2020-03-23T20:20:51.00 0.6 undecidable manual S 231 0.2275 111 -0.14 48
XK.GIZZ.HHZ. 2020-03-23T20:20:50.16 0.3 undecidable manual P 343 0.4011 50 -0.08 71
IV.JOPP.HHZ. 2020-03-23T20:20:49.64 0.3 undecidable manual P 272 0.3669 50 -0.01 73
IV.PLAC.HHZ. 2020-03-23T20:20:48.70 0.1 undecidable manual S 156 0.1592 118 -0.05 100
IV.GRI.EHZ. 2020-03-23T20:20:47.34 0.1 undecidable manual P 13 0.232 110 0.06 98
IV.FERC.HNE. 2020-03-23T20:20:47.14 0.1 undecidable manual P 231 0.2275 111 -0.04 99
IV.PLAC.HHZ. 2020-03-23T20:20:46.01 0.1 positive manual P 156 0.1592 118 0.21 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PLAC.HNN. ML:0 0.001545422 0.2048 AML other m 2020-03-23T20:20:49.73
IV.PLAC.HNE. ML:2.4 0.00208 1.76 AML other m 2020-03-23T20:20:48.97
IV.PLAC.HHE. ML:2.3 0.00184 1.22 AML other m 2020-03-23T20:20:49.73
IV.PLAC.HHN. ML:2.4 0.00212 1.44 AML other m 2020-03-23T20:20:48.96
IV.GRI.EHE. ML:1.9 0.0004324604 0.4608 AML other m 2020-03-23T20:20:54.06
IV.GRI.EHN. ML:2 0.0005800049 0.384 AML other m 2020-03-23T20:20:52.91
IV.JOPP.HHE. ML:1.5 0.000116252685 0.1408 AML other m 2020-03-23T20:20:56.31
IV.JOPP.HHN. ML:1.6 0.000122627035 0.2176 AML other m 2020-03-23T20:20:56.56
MN.CEL.HHE. ML:1.8 0.0001575671 0.448 AML other m 2020-03-23T20:21:01.77
MN.CEL.HHN. ML:1.9 0.00018557475 0.7424 AML other m 2020-03-23T20:21:03.08
MN.CEL.HNE. ML:2.1 0.0002697984 1.3696 AML other m 2020-03-23T20:21:01.05
MN.CEL.HNN. ML:1.9 0.000178828 0.7168 AML other m 2020-03-23T20:21:03.10
IV.SERS.HHN. ML:1.8 0.00012298195 0.448 AML other m 2020-03-23T20:21:05.58
IV.SERS.HNE. ML:1.8 0.00013047505 0.4352 AML other m 2020-03-23T20:21:05.36
IV.SERS.HHE. ML:1.8 0.000122963245 0.5504 AML other m 2020-03-23T20:21:02.80
IV.SERS.HNN. ML:1.8 0.00014181019 0.5632 AML other m 2020-03-23T20:21:02.80
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
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