Earthquake with magnitude of ML 1.9 on date 02-05-2021 and time 15:26:21 (Italy) in region 2 km SW Castel di Sangro (AQ)

A magnitude ML 1.9 earthquake occured in region: 2 km SW Castel di Sangro (AQ), on

  • 02-05-2021 13:26:21 (UTC)
  • 02-05-2021 15:26:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.765, 14.1 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
Castel di Sangro AQ 3 6538 6538
Scontrone AQ 5 574 7112
Montenero Val Cocchiara IS 6 538 7650
Alfedena AQ 6 864 8514
Rionero Sannitico IS 7 1118 9632
San Pietro Avellana IS 8 503 10135
Barrea AQ 9 726 10861
Roccaraso AQ 9 1627 12488
Forlì del Sannio IS 10 675 13163
Acquaviva d'Isernia IS 11 425 13588
Rivisondoli AQ 12 700 14288
Pizzone IS 12 329 14617
Cerro al Volturno IS 12 1281 15898
Castel San Vincenzo IS 13 516 16414
Ateleta AQ 13 1181 17595
Roccasicura IS 13 550 18145
Civitella Alfedena AQ 13 296 18441
Vastogirardi IS 13 704 19145
Villetta Barrea AQ 14 653 19798
Pescocostanzo AQ 14 1128 20926
Castel del Giudice IS 15 346 21272
Rocchetta a Volturno IS 16 1113 22385
Capracotta IS 16 903 23288
Scapoli IS 17 680 23968
Carovilli IS 17 1359 25327
Fornelli IS 18 1909 27236
Miranda IS 18 1047 28283
Gamberale CH 18 320 28603
Colli a Volturno IS 18 1349 29952
Sant'Angelo del Pesco IS 19 364 30316

Municipalities with at least 50000 inhabitants

An earthquake occurred to
66 Km S of Chieti (51815 inhabitants)
78 Km S of Pescara (121014 inhabitants)
79 Km N of Caserta (76326 inhabitants)
84 Km S of Montesilvano (53738 inhabitants)
87 Km SE of L'Aquila (69753 inhabitants)
88 Km N of Aversa (53047 inhabitants)
91 Km NW of Benevento (60091 inhabitants)
93 Km N of Giugliano in Campania (122974 inhabitants)
94 Km N of Acerra (59573 inhabitants)
95 Km N of Afragola (65057 inhabitants)
97 Km N of Marano di Napoli (59874 inhabitants)
97 Km N of Casoria (77642 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 2021-05-02
13:26:21
41.7652 14.1003 10 2021-05-02
13:36:22
Sala Sismica INGV-Roma 89716761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-02 13:26:21 ± 0.05
Latitude 41.7652 ± 0.0036
Longitude 14.1003 ± 0.0036
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 89716761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 410
Semi-minor axis of confidence ellipse (meter) 319
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 191
Circular confidence region, given by single value of horizontal uncertainty (meter) 410
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.37052
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 30
Type of magnitude ML
Reference to an origin 89716761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-02 13:36:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ILOS.HHZ. 2021-05-02T13:28:06.75 3.0 undecidable manual Sg 11.24 0
GU.GBOS.HHZ. 2021-05-02T13:27:41.45 3.0 undecidable manual Pn 2.12 0
IV.MNTV.EHZ. 2021-05-02T13:27:38.41 3.0 positive manual Pg 13.73 0
IV.CPGN.HNZ. 2021-05-02T13:27:31.45 3.0 undecidable manual Sn -0.27 0
IV.PE3.EHZ. 2021-05-02T13:27:28.12 3.0 undecidable manual Sn 0.25 0
IV.PIPA.HHZ. 2021-05-02T13:27:12.01 3.0 undecidable manual Pn 1.91 0
IX.STN3.HHZ.02 2021-05-02T13:26:52.72 3.0 undecidable manual Pg 1.49 0
IV.TERO.HHZ. 2021-05-02T13:26:52.42 3.0 undecidable manual S -1.88 0
IV.GAVE.EHZ. 2021-05-02T13:26:45.86 3.0 positive manual P 0.49 0
IV.FAGN.HHZ. 2021-05-02T13:26:44.50 3.0 undecidable manual S 0.15 0
IV.INTR.HHZ. 2021-05-02T13:26:32.92 0.6 undecidable manual S 329 0.286 50 0.22 48
IV.LPEL.HHZ. 2021-05-02T13:26:32.61 0.6 undecidable manual S 12 0.2878 50 -0.16 48
IV.T0110.HHZ. 2021-05-02T13:26:31.96 3.0 positive manual P -0.31 0
IV.CERA.HHZ. 2021-05-02T13:26:29.37 1.0 undecidable manual S 200 0.1781 117 0.2 24
IV.TRIV.HHZ. 2021-05-02T13:26:29.01 1.0 negative manual P 90 0.3354 50 0.2 24
IV.VAGA.HHZ. 2021-05-02T13:26:29.26 0.3 positive manual P 164 0.3633 50 -0.04 73
IT.OPI.HGZ. 2021-05-02T13:26:29.89 0.6 undecidable manual S 273 0.2014 114 -0.1 50
IV.VVLD.HHZ. 2021-05-02T13:26:29.25 0.6 negative manual P 287 0.3705 50 -0.16 47
IV.LPEL.HHZ. 2021-05-02T13:26:28.08 0.6 positive manual P 12 0.2878 50 0.07 49
IV.POFI.HHZ. 2021-05-02T13:26:28.27 0.3 positive manual P 261 0.2932 50 0.17 72
IV.TST02.HHE. 2021-05-02T13:26:28.23 1.0 undecidable manual P 45 0.2887 50 0.22 24
IV.MIDA.HHZ. 2021-05-02T13:26:28.50 1.0 undecidable manual S 137 0.1682 118 -0.34 24
IV.INTR.HHZ. 2021-05-02T13:26:27.88 0.1 positive manual P 329 0.286 50 -0.09 98
IV.RNI2.HHZ. 2021-05-02T13:26:26.21 0.6 undecidable manual S 148 0.0728 141 0.27 49
IT.OPI.HGZ. 2021-05-02T13:26:26.39 0.6 undecidable manual P 273 0.2014 114 -0.01 50
IV.TST01.HHZ. 2021-05-02T13:26:26.64 1.0 undecidable manual P 94 0.214 113 -0.02 25
IV.MIDA.HHZ. 2021-05-02T13:26:25.50 0.6 undecidable manual P 137 0.1682 118 -0.24 48
IV.CERA.HHZ. 2021-05-02T13:26:25.85 0.1 positive manual P 200 0.1781 117 -0.08 100
IV.RNI2.HHZ. 2021-05-02T13:26:24.20 0.6 undecidable manual P 148 0.0728 141 0.14 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RNI2.HHN. ML:2 0.001375 1.12 AML other m 2021-05-02T13:26:27.96
IV.RNI2.HNN. ML:2 0.0013 1.12 AML other m 2021-05-02T13:26:27.96
IV.RNI2.HNE. ML:2.1 0.001675 0.84 AML other m 2021-05-02T13:26:28.08
IV.RNI2.HHE. ML:2.1 0.00179 0.84 AML other m 2021-05-02T13:26:28.08
IV.MIDA.HHE. ML:2.1 0.0009605 0.34 AML other m 2021-05-02T13:26:28.56
IV.MIDA.HNE. ML:2 0.0007845 0.5 AML other m 2021-05-02T13:26:29.69
IV.MIDA.HNN. ML:2.1 0.000903 0.16 AML other m 2021-05-02T13:26:29.55
IV.MIDA.HHN. ML:2 0.0008265 0.36 AML other m 2021-05-02T13:26:29.45
IV.CERA.HNN. ML:1.7 0.0003785 0.34 AML other m 2021-05-02T13:26:30.97
IV.CERA.HHN. ML:1.7 0.0003925 0.82 AML other m 2021-05-02T13:26:31.39
IV.CERA.HNE. ML:1.7 0.0003585 0.52 AML other m 2021-05-02T13:26:33.55
IV.CERA.HHE. ML:1.7 0.000376 0.52 AML other m 2021-05-02T13:26:33.55
IV.INTR.HNN. ML:2.1 0.0006405 1.06 AML other m 2021-05-02T13:26:34.01
IV.INTR.HHN. ML:2.2 0.000708 0.22 AML other m 2021-05-02T13:26:34.01
IV.INTR.HNE. ML:2 0.000447 1.48 AML other m 2021-05-02T13:26:34.10
IV.INTR.HHE. ML:2 0.0004625 1.46 AML other m 2021-05-02T13:26:34.10
IV.POFI.HHE. ML:1.4 0.0001135 0.74 AML other m 2021-05-02T13:26:34.11
IV.POFI.HHN. ML:1.2 7.36E-5 0.38 AML other m 2021-05-02T13:26:34.03
IV.LPEL.HHN. ML:1.9 0.0003245 0.12 AML other m 2021-05-02T13:26:35.45
IV.LPEL.HHE. ML:1.8 0.000298 1.14 AML other m 2021-05-02T13:26:35.39
IV.VVLD.HHN. ML:1.9 0.0002895 1.02 AML other m 2021-05-02T13:26:35.41
IV.VVLD.HHE. ML:1.9 0.000279 0.12 AML other m 2021-05-02T13:26:35.88
IV.VAGA.HHE. ML:1.8 0.000189 0.18 AML other m 2021-05-02T13:26:36.72
IV.VAGA.HHN. ML:2 0.0003295 0.44 AML other m 2021-05-02T13:26:36.69
IV.TRIV.HNE. ML:1.4 9.055E-5 1.14 AML other m 2021-05-02T13:26:41.61
IV.T0110.HHE. ML:1.9 0.000187 0.46 AML other m 2021-05-02T13:26:42.56
IV.T0110.HHN. ML:2 0.000211 1.2 AML other m 2021-05-02T13:26:42.30
IV.FAGN.HHE. ML:2.1 0.000192 0.68 AML other m 2021-05-02T13:26:46.45
IV.TRIV.HNN. ML:1.4 8.705E-5 0.72 AML other m 2021-05-02T13:26:46.20
IV.FAGN.HHN. ML:2 0.0001695 0.48 AML other m 2021-05-02T13:26:49.29
IV.CPGN.EHN. ML:2.9 0.0001226 0.44 AML other m 2021-05-02T13:27:28.50
IV.CPGN.EHE. ML:2.9 0.0001315 0.54 AML other m 2021-05-02T13:27:31.87
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