Earthquake with magnitude of Md 1.4 on date 21-04-2021 and time 08:51:05 (Italy) in region 4 km W Gamberale (CH)

A magnitude Md 1.4 earthquake occured in region: 4 km W Gamberale (CH), on

  • 21-04-2021 06:51:05 (UTC)
  • 21-04-2021 08:51:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.892, 14.164 at 17 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
Gamberale CH 4 320 320
Ateleta AQ 5 1181 1501
Castel del Giudice IS 7 346 1847
Pizzoferrato CH 7 1130 2977
Sant'Angelo del Pesco IS 8 364 3341
Pescocostanzo AQ 8 1128 4469
Rivisondoli AQ 8 700 5169
Roccaraso AQ 9 1627 6796
Palena CH 11 1392 8188
Capracotta IS 11 903 9091
Pescopennataro IS 11 285 9376
Quadri CH 11 815 10191
San Pietro Avellana IS 12 503 10694
Montenerodomo CH 12 690 11384
Borrello CH 12 354 11738
Lettopalena CH 12 358 12096
Castel di Sangro AQ 13 6538 18634
Colledimacine CH 13 202 18836
Civitaluparella CH 13 351 19187
Fallo CH 14 139 19326
Taranta Peligna CH 14 376 19702
Vastogirardi IS 15 704 20406
Rosello CH 16 237 20643
Rocca Pia AQ 16 178 20821
Torricella Peligna CH 17 1353 22174
Campo di Giove AQ 17 803 22977
Montelapiano CH 17 82 23059
Villa Santa Maria CH 17 1346 24405
Lama dei Peligni CH 17 1271 25676
Montebello sul Sangro CH 17 88 25764
Roio del Sangro CH 18 103 25867
Cansano AQ 18 274 26141
Pennadomo CH 18 277 26418
Pettorano sul Gizio AQ 19 1376 27794
Scontrone AQ 19 574 28368
Agnone IS 19 5139 33507
Pietraferrazzana CH 20 134 33641
Monteferrante CH 20 129 33770
Rionero Sannitico IS 20 1118 34888

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km S of Chieti (51815 inhabitants)
64 Km S of Pescara (121014 inhabitants)
69 Km S of Montesilvano (53738 inhabitants)
81 Km SE of L'Aquila (69753 inhabitants)
92 Km N of Caserta (76326 inhabitants)
93 Km SE of Teramo (54892 inhabitants)
99 Km NW of Benevento (60091 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
Md 1.4 2021-04-21
06:51:05
41.8922 14.1637 17 2021-07-12
16:55:09
Bollettino Sismico Italiano INGV 89766991
Reviewed
Rev100
Md 1.4 2021-04-21
06:51:05
41.8958 14.1687 19 2021-04-21
07:16:39
Sala Sismica INGV-Roma 89320541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-21 06:51:05 ± 0.23
Latitude 41.8922 ± 0.0063
Longitude 14.1637 ± 0.0085
Depth (km) 17 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89766991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 665
Semi-minor axis of confidence ellipse (meter) 513
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 212
Circular confidence region, given by single value of horizontal uncertainty (meter) 670
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.49463
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitudes information

Md:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 5
Type of magnitude Md
Reference to an origin 89766991
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-18 15:57:18

Md:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 6
Type of magnitude Md
Reference to an origin 89320541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-21 07:16:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.APEC.HHZ. 2021-04-21T06:51:23.44 3.0 undecidable manual Pn -0.12 0
IV.T0110.HHZ. 2021-04-21T06:51:21.87 0.6 undecidable manual S 320 0.4434 99 0.7 41
IV.POFI.HHZ. 2021-04-21T06:51:19.01 0.3 undecidable manual S 243 0.3795 101 -0.29 70
IV.VVLD.HHZ. 2021-04-21T06:51:19.88 0.3 undecidable manual S 267 0.4029 100 -0.11 72
IT.OPI.HGZ. 2021-04-21T06:51:16.08 0.3 undecidable manual S 245 0.2743 107 -0.2 73
IV.INTR.HHZ. 2021-04-21T06:51:15.13 0.3 undecidable manual S 302 0.2266 113 0.17 74
IV.MIDA.HHZ. 2021-04-21T06:51:15.62 0.3 undecidable manual S 165 0.259 109 -0.24 72
IV.LRP.EHN. 2021-04-21T06:51:15.28 0.3 undecidable manual P 241 0.4946 98 -0.13 71
IV.MMO1.EHZ. 2021-04-21T06:51:14.32 3.0 undecidable manual P 0.18 0
IV.T0110.HHZ. 2021-04-21T06:51:14.47 0.3 undecidable manual P 320 0.4434 99 -0.06 72
IV.RNI2.HHZ. 2021-04-21T06:51:14.68 0.6 undecidable manual S 183 0.1889 118 0.72 42
IV.VVLD.HHZ. 2021-04-21T06:51:13.62 0.1 undecidable manual P 267 0.4029 100 -0.23 94
IV.POFI.HHZ. 2021-04-21T06:51:13.32 0.3 undecidable manual P 243 0.3795 101 -0.14 72
IV.TST02.HHN. 2021-04-21T06:51:12.93 0.3 undecidable manual S 63 0.1745 121 -0.64 63
IT.SULP.HGE. 2021-04-21T06:51:11.62 0.3 undecidable manual P 318 0.2608 109 0.12 74
IV.INTR.HHZ. 2021-04-21T06:51:11.05 0.1 positive manual P 302 0.2266 113 0.1 100
IV.MIDA.HHZ. 2021-04-21T06:51:11.56 0.1 negative manual P 165 0.259 109 0.09 99
IT.OPI.HGZ. 2021-04-21T06:51:11.62 0.1 undecidable manual P 245 0.2743 107 -0.09 99
IV.RNI2.HHZ. 2021-04-21T06:51:10.90 0.3 undecidable manual P 183 0.1889 118 0.53 68
IV.TST02.HHN. 2021-04-21T06:51:10.23 0.3 undecidable manual P 63 0.1745 121 0.09 77
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TST02.HHN. Md:0.9 6 END duration s
IV.INTR.HHZ. Md:1.4 12 END duration s
IV.MIDA.HHZ. Md:1.4 11 END duration s
IV.POFI.HHZ. Md:1.6 13 END duration s
IV.VVLD.HHZ. Md:1.5 12 END duration s
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