Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 16-05-2023 and time 01:20:29 (Italy) in region 4 km SW Palena (CH)

A magnitude ML 2.1 earthquake occured in region: 4 km SW Palena (CH), on

  • 15-05-2023 23:20:29 (UTC)
  • 16-05-2023 01:20:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.9540, 14.1190 at 7 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.

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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
Palena CH 4 1392 1392
Lettopalena CH 7 358 1750
Pescocostanzo AQ 8 1128 2878
Taranta Peligna CH 9 376 3254
Campo di Giove AQ 9 803 4057
Colledimacine CH 9 202 4259
Gamberale CH 9 320 4579
Rivisondoli AQ 10 700 5279
Pizzoferrato CH 10 1130 6409
Cansano AQ 11 274 6683
Montenerodomo CH 11 690 7373
Lama dei Peligni CH 12 1271 8644
Rocca Pia AQ 12 178 8822
Roccaraso AQ 12 1627 10449
Ateleta AQ 13 1181 11630
Pettorano sul Gizio AQ 13 1376 13006
Sant'Angelo del Pesco IS 14 364 13370
Torricella Peligna CH 14 1353 14723
Castel del Giudice IS 14 346 15069
Quadri CH 14 815 15884
Pacentro AQ 15 1174 17058
Civitaluparella CH 15 351 17409
Borrello CH 16 354 17763
Pescopennataro IS 17 285 18048
Fallo CH 17 139 18187
Fara San Martino CH 17 1414 19601
Civitella Messer Raimondo CH 17 848 20449
Gessopalena CH 17 1433 21882
Montebello sul Sangro CH 18 88 21970
Pennadomo CH 18 277 22247
Capracotta IS 18 903 23150
Montelapiano CH 19 82 23232
Castel di Sangro AQ 19 6538 29770
San Pietro Avellana IS 19 503 30273
Introdacqua AQ 19 2126 32399
Sulmona AQ 19 24557 56956
Villa Santa Maria CH 19 1346 58302
Roccascalegna CH 20 1219 59521
Rosello CH 20 237 59758

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km S of Chieti (51815 inhabitants)
58 Km S of Pescara (121014 inhabitants)
63 Km S of Montesilvano (53738 inhabitants)
74 Km SE of L'Aquila (69753 inhabitants)
86 Km SE of Teramo (54892 inhabitants)
99 Km N of Caserta (76326 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
Reviewed
Rev100 		ML 2.1 2023-05-15
23:20:29		 41.9537 14.1193 7 2023-05-15
23:28:14		 Sala Sismica INGV-Roma 117392671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-15 23:20:29 ± 0.17
Latitude 41.9537 ± 0.0072
Longitude 14.1193 ± 0.0109
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117392671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 883
Semi-minor axis of confidence ellipse (meter) 780
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 103
Circular confidence region, given by single value of horizontal uncertainty (meter) 880.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 205
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.80669
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 8
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 117392671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-15 23:28:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
7C.SPAOL.HNZ. 2023-05-15T23:22:26.52 3.0 undecidable manual Sn -4.53 0
IV.CET2.HHZ. 2023-05-15T23:21:56.17 3.0 undecidable manual Sg 5.5 0
NI.PALA.HHZ. 2023-05-15T23:21:49.24 3.0 negative manual Pg 12.89 0
IV.RESU.HHZ. 2023-05-15T23:21:45.31 3.0 undecidable manual Pg 9.71 0
IV.SALB.HHZ. 2023-05-15T23:21:44.74 3.0 undecidable manual Sn -3.06 0
IV.CMPR.HHZ. 2023-05-15T23:21:26.33 3.0 undecidable manual Sn -1.53 0
IV.CET2.HHZ. 2023-05-15T23:21:23.78 3.0 undecidable manual Pg 8.62 0
IX.COL3.HHZ.02 2023-05-15T23:21:20.88 3.0 undecidable manual S 0.33 0
IV.RIBO.EHZ.01 2023-05-15T23:21:08.33 3.0 undecidable manual Pn -1.75 0
IV.FIAM.HHZ. 2023-05-15T23:20:56.89 0.1 undecidable manual S 293 89.5437 50 0.51 79
IV.CESI.HHZ. 2023-05-15T23:20:56.90 3.0 positive manual P 1.82 0
IV.FDMO.HHZ. 2023-05-15T23:20:55.78 3.0 positive manual P 1.47 0
IV.ARRO.EHZ. 2023-05-15T23:20:54.50 3.0 undecidable manual P 2.23 0
OT.OT05.EHZ. 2023-05-15T23:20:54.13 3.0 positive manual P 1.42 0
IV.GIUL.HHZ. 2023-05-15T23:20:54.93 0.1 undecidable manual S 239 83.9493 50 0.04 88
IV.NRCA.HHZ. 2023-05-15T23:20:50.45 3.0 positive manual P -1.47 0
IV.FAGN.HHZ. 2023-05-15T23:20:47.26 0.1 undecidable manual S 308 55.9995 50 -0.18 90
IV.RM33.EHZ. 2023-05-15T23:20:45.45 3.0 undecidable manual P -1.43 0
IV.SMA1.EHZ. 2023-05-15T23:20:45.43 3.0 undecidable manual P -1.9 0
IV.POFI.HHZ. 2023-05-15T23:20:44.31 0.1 undecidable manual S 232 42.624 50 0.44 88
IV.FIAM.HHZ. 2023-05-15T23:20:44.22 1.0 negative manual P 293 89.5437 50 -0.66 19
IV.GIUL.HHZ. 2023-05-15T23:20:43.91 1.0 positive manual P 239 83.9493 50 -0.11 22
IV.T0110.HHZ. 2023-05-15T23:20:43.87 0.1 undecidable manual S 317 41.625 50 0.27 91
IV.VVLD.HHZ. 2023-05-15T23:20:43.37 0.1 undecidable manual S 257 42.0246 50 -0.33 90
IV.MCI.EHZ. 2023-05-15T23:20:41.54 3.0 positive manual P 0.85 0
IV.BSSO.HHZ. 2023-05-15T23:20:41.97 3.0 positive manual P 0.14 0
IV.FAGN.HHZ. 2023-05-15T23:20:39.09 0.6 negative manual P 308 55.9995 50 -0.62 40
IV.T0110.HHZ. 2023-05-15T23:20:37.03 0.6 positive manual P 317 41.625 50 -0.46 44
IV.VVLD.HHZ. 2023-05-15T23:20:37.22 0.1 negative manual P 257 42.0246 50 -0.33 90
IV.POFI.HHZ. 2023-05-15T23:20:37.64 0.3 positive manual P 232 42.624 50 -0.01 72
IV.INTR.HHZ. 2023-05-15T23:20:36.16 0.1 undecidable manual S 290 18.87 111 0.01 100
IV.LPEL.HHZ. 2023-05-15T23:20:33.77 0.1 undecidable manual S 27 11.5773 122 -0.11 99
IV.INTR.HHZ. 2023-05-15T23:20:33.23 0.1 negative manual P 290 18.87 111 0.03 99
IV.LPEL.HHZ. 2023-05-15T23:20:32.26 0.1 negative manual P 27 11.5773 122 0.37 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LPEL.HHE. ML:2.7 0.0068 0.84 AML other m 2023-05-15T23:20:34.79
IV.LPEL.HNE. ML:2.7 0.006894999999999999 0.84 AML other m 2023-05-15T23:20:34.79
IV.LPEL.HHN. ML:2.6 0.00526 0.94 AML other m 2023-05-15T23:20:36.14
IV.LPEL.HNN. ML:2.6 0.005465 0.92 AML other m 2023-05-15T23:20:36.15
IV.INTR.HHN. ML:2.6 0.0034249999999999997 1.16 AML other m 2023-05-15T23:20:37.62
IV.INTR.HNN. ML:2.6 0.003245 1.16 AML other m 2023-05-15T23:20:37.63
IV.INTR.HHE. ML:2.6 0.0037749999999999997 0.62 AML other m 2023-05-15T23:20:37.77
IV.INTR.HNE. ML:2.6 0.0037249999999999996 0.62 AML other m 2023-05-15T23:20:37.77
IV.T0110.HHE. ML:2.4 0.0009085 1.2 AML other m 2023-05-15T23:20:46.19
IV.POFI.HHE. ML:1.8 0.000195 0.86 AML other m 2023-05-15T23:20:46.11
IV.T0110.HHN. ML:2.4 0.0008265 0.28 AML other m 2023-05-15T23:20:46.81
IV.POFI.HHN. ML:1.8 0.000189 0.6 AML other m 2023-05-15T23:20:47.87
IV.RNI2.HNE. ML:2.0 0.000544 0.62 AML other m 2023-05-15T23:20:51.47
IV.RNI2.HHE. ML:2.0 0.0005665000000000001 0.64 AML other m 2023-05-15T23:20:51.48
IV.RNI2.HHN. ML:2.1 0.000783 1.28 AML other m 2023-05-15T23:20:52.17
IV.RNI2.HNN. ML:2.1 0.0007689999999999999 1.26 AML other m 2023-05-15T23:20:52.18
IV.GIUL.HHN. ML:2.0 0.00011280000000000002 0.92 AML other m 2023-05-15T23:20:57.28
IV.SMA1.EHN. ML:2.1 0.0001255 1.1 AML other m 2023-05-15T23:21:05.66
IV.FIAM.HHN. ML:1.9 0.00009695 0.54 AML other m 2023-05-15T23:21:06.39
IV.SMA1.EHE. ML:2.1 0.000132 0.56 AML other m 2023-05-15T23:21:08.30
IV.RM33.EHE. ML:2.1 0.00014150000000000002 0.46 AML other m 2023-05-15T23:21:09.78
IV.GIUL.HHE. ML:1.9 0.00009609999999999999 0.42 AML other m 2023-05-15T23:21:10.37
IV.RM33.EHN. ML:2.0 0.00011044999999999999 0.96 AML other m 2023-05-15T23:21:11.83
IV.ARRO.EHE. ML:1.9 0.0000484 0.4 AML other m 2023-05-15T23:21:16.00
IV.NRCA.HHE. ML:2.0 0.00007494999999999999 0.44 AML other m 2023-05-15T23:21:16.34
IV.ARRO.EHN. ML:1.9 0.00004835 0.54 AML other m 2023-05-15T23:21:17.34
IV.FIAM.HHE. ML:1.9 0.00008275 0.6 AML other m 2023-05-15T23:21:17.37
IV.FDMO.HHN. ML:2.0 0.000058899999999999995 1.54 AML other m 2023-05-15T23:21:18.06
IV.FDMO.HHE. ML:2.0 0.00005405 0.76 AML other m 2023-05-15T23:21:26.63
IV.CESI.HHN. ML:2.2 0.0000727 0.64 AML other m 2023-05-15T23:21:27.33
IV.NRCA.HHN. ML:2.0 0.0000628 1.32 AML other m 2023-05-15T23:21:28.26
IV.CESI.HHE. ML:2.1 0.000060150000000000005 0.94 AML other m 2023-05-15T23:21:32.59
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