Earthquake with magnitude of ML 1.4 on date 27-03-2023 and time 23:33:14 (Italy) in region 3 km N Cagnano Amiterno (AQ)

A magnitude ML 1.4 earthquake occured in region: 3 km N Cagnano Amiterno (AQ), on

  • 27-03-2023 21:33:14 (UTC)
  • 27-03-2023 23:33:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4900, 13.2340 at 12 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
Cagnano Amiterno AQ 3 1369 1369
Montereale AQ 4 2581 3950
Barete AQ 6 737 4687
Capitignano AQ 7 665 5352
Pizzoli AQ 8 4326 9678
Borbona RI 9 617 10295
Posta RI 12 694 10989
Scoppito AQ 13 3727 14716
Campotosto AQ 14 542 15258
Antrodoco RI 15 2588 17846
Micigliano RI 15 127 17973
Cittareale RI 16 482 18455
Amatrice RI 16 2657 21112
Borgo Velino RI 17 972 22084
Castel Sant'Angelo RI 20 1308 23392

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of L'Aquila (69753 inhabitants)
43 Km W of Teramo (54892 inhabitants)
49 Km E of Terni (111501 inhabitants)
68 Km SE of Foligno (57155 inhabitants)
69 Km NE of Guidonia Montecelio (88673 inhabitants)
69 Km NE of Tivoli (56533 inhabitants)
75 Km W of Montesilvano (53738 inhabitants)
78 Km W of Chieti (51815 inhabitants)
80 Km W of Pescara (121014 inhabitants)
91 Km NE of Roma (2864731 inhabitants)
93 Km E of Viterbo (67173 inhabitants)
97 Km NE of Velletri (53303 inhabitants)
97 Km SE of Perugia (166134 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
ML 1.4 2023-03-27
21:33:14
42.4897 13.2345 12 2024-03-01
17:18:16
Bollettino Sismico Italiano INGV 120883821
Reviewed
Rev100
ML 1.5 2023-03-27
21:33:14
42.4803 13.2308 12 2023-03-27
21:40:48
Sala Sismica INGV-Roma 115806151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-27 21:33:14 ± 0.06
Latitude 42.4897 ± 0.0036
Longitude 13.2345 ± 0.0037
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 120883821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 387
Semi-minor axis of confidence ellipse (meter) 203
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 32
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 148
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
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) 0.02428
Epicentral distance of station farthest from the epicenter (degree) 0.55668
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 115806151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-27 21:40:48

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 120883821
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-12-18 16:39:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2023-03-27T21:33:27.10 0.3 undecidable manual S 346 39.3273 92 -0.04 70
IV.GAVE.EHN. 2023-03-27T21:33:26.20 0.3 undecidable manual S 309 35.742 92 0.03 71
IV.FDMO.HHZ. 2023-03-27T21:33:25.19 1.0 undecidable manual P 349 61.7937 91 0.07 23
IV.T0110.HHZ. 2023-03-27T21:33:23.57 0.6 undecidable manual P 123 53.0025 91 -0.19 44
IV.VCEL.EHN. 2023-03-27T21:33:23.57 0.3 undecidable manual P 102 50.7159 91 0.16 68
IV.GIGS.HHZ. 2023-03-27T21:33:23.60 0.3 undecidable manual S 98 27.9498 93 -0.5 65
MN.AQU.HNZ. 2023-03-27T21:33:22.14 0.6 undecidable manual S 137 20.5683 95 0.02 49
IV.LNSS.HHZ. 2023-03-27T21:33:22.10 0.3 undecidable manual S 308 20.2686 96 0.06 73
IV.NRCA.HHZ. 2023-03-27T21:33:21.51 0.3 undecidable manual P 346 39.3273 92 -0.15 68
IV.ARRO.EHZ. 2023-03-27T21:33:21.56 0.3 undecidable manual P 285 39.627 92 -0.13 68
IV.FAGN.HHZ. 2023-03-27T21:33:21.67 0.6 undecidable manual P 131 37.9287 92 0.24 46
IV.SMA1.EHZ. 2023-03-27T21:33:21.60 0.6 undecidable manual S 28 17.6712 99 0.25 47
IV.GAVE.EHN. 2023-03-27T21:33:20.90 0.3 undecidable manual P 309 35.742 92 -0.2 68
IV.CAMP.HHE. 2023-03-27T21:33:20.70 0.1 undecidable manual S 70 15.1737 104 0 98
IV.GIGS.HHZ. 2023-03-27T21:33:19.85 0.3 undecidable manual P 98 27.9498 93 -0.05 71
IV.SMA1.EHZ. 2023-03-27T21:33:18.48 0.3 undecidable manual P 28 17.6712 99 0.16 72
IV.RM33.EHZ. 2023-03-27T21:33:18.20 0.1 undecidable manual S 323 2.6973 164 -0.1 100
MN.AQU.HNZ. 2023-03-27T21:33:18.86 0.6 undecidable manual P 137 20.5683 95 0.1 48
IV.LNSS.HHZ. 2023-03-27T21:33:18.77 0.1 undecidable manual P 308 20.2686 96 0.06 98
IV.CAMP.HHE. 2023-03-27T21:33:18.08 0.3 undecidable manual P 70 15.1737 104 0.14 72
IV.RM33.EHZ. 2023-03-27T21:33:16.74 0.1 undecidable manual P 323 2.6973 164 0.18 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:1.5 0.0005085000000000001 0.56 AML other m 2023-03-27T21:33:18.34
IV.RM33.HNN. ML:1.8 0.0009599999999999999 0.24 AML other m 2023-03-27T21:33:18.45
IV.RM33.EHN. ML:1.8 0.0009459999999999999 0.24 AML other m 2023-03-27T21:33:18.33
IV.RM33.HNE. ML:1.5 0.0004715 0.78 AML other m 2023-03-27T21:33:18.75
IV.SMA1.EHN. ML:1.1 0.00010300000000000001 1.64 AML other m 2023-03-27T21:33:21.98
IV.SMA1.EHE. ML:1.4 0.0002135 0.16 AML other m 2023-03-27T21:33:22.35
IV.NRCA.HHE. ML:1.2 0.00005955 0.68 AML other m 2023-03-27T21:33:28.35
IV.NRCA.HHN. ML:1.2 0.000055 0.42 AML other m 2023-03-27T21:33:28.52
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