Earthquake with magnitude of ML 1.1 on date 01-05-2020 and time 06:18:59 (Italy) in region 4 km SW San Pietro Avellana (IS)

A magnitude ML 1.1 earthquake occured in region: 4 km SW San Pietro Avellana (IS), on

  • 01-05-2020 04:18:59 (UTC)
  • 01-05-2020 06:18:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.76, 14.16 at 16 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
San Pietro Avellana IS 4 503 503
Castel di Sangro AQ 5 6538 7041
Rionero Sannitico IS 6 1118 8159
Forlì del Sannio IS 7 675 8834
Vastogirardi IS 9 704 9538
Montenero Val Cocchiara IS 9 538 10076
Roccasicura IS 9 550 10626
Acquaviva d'Isernia IS 10 425 11051
Scontrone AQ 10 574 11625
Alfedena AQ 11 864 12489
Ateleta AQ 11 1181 13670
Roccaraso AQ 12 1627 15297
Capracotta IS 12 903 16200
Castel del Giudice IS 12 346 16546
Carovilli IS 12 1359 17905
Cerro al Volturno IS 13 1281 19186
Barrea AQ 14 726 19912
Castel San Vincenzo IS 14 516 20428
Rivisondoli AQ 15 700 21128
Pizzone IS 15 329 21457
Miranda IS 15 1047 22504
Sant'Angelo del Pesco IS 16 364 22868
Rocchetta a Volturno IS 16 1113 23981
Pescocostanzo AQ 16 1128 25109
Gamberale CH 17 320 25429
Fornelli IS 17 1909 27338
Pescopennataro IS 17 285 27623
Pescolanciano IS 17 855 28478
Civitella Alfedena AQ 18 296 28774
Scapoli IS 18 680 29454
Agnone IS 18 5139 34593
Colli a Volturno IS 18 1349 35942
Pietrabbondante IS 19 759 36701
Villetta Barrea AQ 19 653 37354
Pizzoferrato CH 19 1130 38484
Pesche IS 19 1661 40145
Sessano del Molise IS 20 727 40872
Castelverrino IS 20 115 40987
Isernia IS 20 21842 62829

Municipalities with at least 50000 inhabitants

An earthquake occurred to
66 Km S of Chieti (51815 inhabitants)
78 Km N of Caserta (76326 inhabitants)
79 Km S of Pescara (121014 inhabitants)
84 Km S of Montesilvano (53738 inhabitants)
87 Km NW of Benevento (60091 inhabitants)
88 Km N of Aversa (53047 inhabitants)
91 Km SE of L'Aquila (69753 inhabitants)
92 Km N of Acerra (59573 inhabitants)
93 Km N of Giugliano in Campania (122974 inhabitants)
94 Km N of Afragola (65057 inhabitants)
96 Km N of Casoria (77642 inhabitants)
96 Km N of Marano di Napoli (59874 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
Reviewed
Rev100
ML 1.1 2020-05-01
04:18:59
41.76 14.16 16 2020-05-01
04:33:32
Sala Sismica INGV-Roma 78710871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-01 04:18:59 ± 0.14
Latitude 41.76 ± 0.01
Longitude 14.16 ± 0.01
Depth (km) 16 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78710871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1113
Semi-minor axis of confidence ellipse (meter) 485
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 68
Circular confidence region, given by single value of horizontal uncertainty (meter) 1110
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.54769
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 78710871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-01 04:33:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-05-01T04:19:45.98 3.0 undecidable manual Sn 0.87 0
OT.OT13.EHZ. 2020-05-01T04:19:41.24 3.0 undecidable manual Sg 1.13 0
IV.ATFO.HHZ. 2020-05-01T04:19:25.24 3.0 positive manual Pn -2.86 0
IV.T0110.HHZ. 2020-05-01T04:19:18.79 0.3 undecidable manual S 329 0.5477 96 0.5 63
IV.VVLD.HHZ. 2020-05-01T04:19:14.41 0.6 undecidable manual S 285 0.4137 99 0.07 47
IT.SULP.HGE. 2020-05-01T04:19:13.20 0.6 undecidable manual S 332 0.3669 100 0.22 46
IV.T0110.HHZ. 2020-05-01T04:19:10.07 0.1 undecidable manual P 329 0.5477 96 -0.29 88
IV.CERA.HHZ. 2020-05-01T04:19:08.44 0.6 undecidable manual S 213 0.1934 115 0.39 46
IV.ROSPO.HHZ. 2020-05-01T04:19:08.39 3.0 undecidable manual P -1.76 0
IV.VVLD.HHZ. 2020-05-01T04:19:07.82 0.1 undecidable manual P 285 0.4137 99 -0.26 91
IT.SULA.HNZ. 2020-05-01T04:19:07.08 0.1 undecidable manual P 330 0.3606 101 -0.11 95
IT.SULP.HGE. 2020-05-01T04:19:07.00 0.1 undecidable manual P 332 0.3669 100 -0.3 91
IV.TRIV.HHZ. 2020-05-01T04:19:06.44 0.1 undecidable manual P 89 0.2923 104 0.4 91
IV.MIDA.HNN. 2020-05-01T04:19:06.40 0.3 undecidable manual S 149 0.1385 127 -0.25 71
IV.RNI2.HHZ. 2020-05-01T04:19:05.24 0.6 undecidable manual S 185 0.0576 154 0.13 51
IV.CERA.HHZ. 2020-05-01T04:19:04.52 0.1 undecidable manual P 213 0.1934 115 0.07 98
IV.MIDA.HNN. 2020-05-01T04:19:03.61 0.1 undecidable manual P 149 0.1385 127 -0.03 100
IV.RNI2.HHZ. 2020-05-01T04:19:02.70 1.0 negative manual P 185 0.0576 154 -0.05 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RNI2.HHN. ML:1.2 0.0001515 1.36 AML other m 2020-05-01T04:19:05.27
IV.RNI2.HNN. ML:1.2 0.0001465 1.36 AML other m 2020-05-01T04:19:05.27
IV.RNI2.HNE. ML:1.3 0.0001815 1.18 AML other m 2020-05-01T04:19:06.70
IV.RNI2.HHE. ML:1.3 0.0001915 0.82 AML other m 2020-05-01T04:19:06.69
IV.CERA.HHE. ML:1 5.505E-5 0.5 AML other m 2020-05-01T04:19:10.84
IV.CERA.HHN. ML:0.9 4.525E-5 0.32 AML other m 2020-05-01T04:19:11.16
IV.VVLD.HHN. ML:1.3 4.925E-5 1.38 AML other m 2020-05-01T04:19:15.02
IV.VVLD.HHE. ML:1.2 4.145E-5 0.8 AML other m 2020-05-01T04:19:15.45
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