Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 26-03-2023 and time 13:11:59 (UTC) in region 2 km SE Montereale (AQ)

A magnitude ML 2.1 earthquake occured in region: 2 km SE Montereale (AQ), on

  • 26-03-2023 13:11:59 (UTC)
  • 26-03-2023 15:11:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5080, 13.2650 at 13 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.

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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
Montereale AQ 3 2581 2581
Capitignano AQ 3 665 3246
Cagnano Amiterno AQ 6 1369 4615
Barete AQ 6 737 5352
Pizzoli AQ 8 4326 9678
Campotosto AQ 10 542 10220
Borbona RI 11 617 10837
Amatrice RI 14 2657 13494
Posta RI 14 694 14188
Cittareale RI 15 482 14670
Scoppito AQ 15 3727 18397
Antrodoco RI 18 2588 20985
Crognaleto TE 18 1297 22282
Micigliano RI 18 127 22409

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NW of L'Aquila (69753 inhabitants)
40 Km W of Teramo (54892 inhabitants)
51 Km E of Terni (111501 inhabitants)
68 Km SE of Foligno (57155 inhabitants)
72 Km NE of Tivoli (56533 inhabitants)
72 Km NE of Guidonia Montecelio (88673 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
76 Km W of Chieti (51815 inhabitants)
78 Km W of Pescara (121014 inhabitants)
94 Km NE of Roma (2864731 inhabitants)
96 Km E of Viterbo (67173 inhabitants)
98 Km SE of Perugia (166134 inhabitants)
100 Km NE of Velletri (53303 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 2.1 2023-03-26
13:11:59		 42.5082 13.2653 13 2024-03-01
17:18:03		 Bollettino Sismico Italiano INGV 116406351
Reviewed
Rev100 		ML 2.1 2023-03-26
13:11:59		 42.5233 13.2728 12 2023-03-26
13:18:25		 Sala Sismica INGV-Roma 115750921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-26 13:11:59 ± 0.07
Latitude 42.5082 ± 0.0036
Longitude 13.2653 ± 0.0049
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116406351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 469
Semi-minor axis of confidence ellipse (meter) 92
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 226
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
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 43
Number of defining phases 43
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) 0.03777
Epicentral distance of station farthest from the epicenter (degree) 0.69518
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 48
Type of magnitude ML
Reference to an origin 115750921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-26 13:18:25

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 59
Type of magnitude ML
Reference to an origin 116406351
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-12-27 15:25:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MML1.EHZ. 2023-03-26T13:12:21.67 0.6 undecidable manual S 341 71.2731 91 0.87 34
IV.FDMO.HHZ. 2023-03-26T13:12:18.20 0.6 undecidable manual S 346 60.3951 92 0.3 42
IV.CESI.HHZ. 2023-03-26T13:12:18.90 0.6 undecidable manual S 332 62.3931 92 0.45 41
IV.MF5.EHZ. 2023-03-26T13:12:17.53 0.6 undecidable manual S 17 55.5 92 0.93 34
IV.T0110.HHZ. 2023-03-26T13:12:16.00 0.3 undecidable manual S 126 52.1034 92 0.32 65
IV.VCEL.EHZ. 2023-03-26T13:12:15.74 0.6 undecidable manual S 105 48.7179 92 0.94 35
IV.MMO1.EHN. 2023-03-26T13:12:13.29 0.6 undecidable manual S 7 43.7229 93 -0.16 46
IV.ARRO.EHZ. 2023-03-26T13:12:12.00 0.6 undecidable manual S 281 41.625 93 -0.89 36
IV.ASSB.HHZ. 2023-03-26T13:12:12.80 0.6 undecidable manual P 320 77.1672 91 0.17 43
IV.INTR.HHZ. 2023-03-26T13:12:12.60 0.3 undecidable manual P 136 76.0683 91 0.13 65
IV.MOMA.HHZ. 2023-03-26T13:12:11.08 0.6 undecidable manual P 300 65.49 92 0.24 43
IV.NRCA.HHZ. 2023-03-26T13:12:11.67 0.3 undecidable manual S 341 38.1285 93 -0.3 68
IV.GAVE.EHZ. 2023-03-26T13:12:11.50 0.3 undecidable manual S 304 36.5412 94 -0.04 71
IV.MML1.EHZ. 2023-03-26T13:12:11.61 0.3 undecidable manual P 341 71.2731 91 -0.12 66
IV.CESI.HHZ. 2023-03-26T13:12:10.28 0.6 undecidable manual P 332 62.3931 92 -0.08 45
IV.GUMA.HHZ. 2023-03-26T13:12:10.07 0.6 undecidable manual P 5 61.7937 92 -0.19 44
IV.CSP1.EHZ. 2023-03-26T13:12:10.83 0.6 undecidable manual P 356 64.8906 92 0.08 44
IV.PTQR.HHZ. 2023-03-26T13:12:09.10 0.3 undecidable manual P 168 55.1004 92 -0.13 67
IV.MTRA.EHE. 2023-03-26T13:12:09.08 0.3 undecidable manual S 21 29.5482 95 -0.61 64
IV.FDMO.HHZ. 2023-03-26T13:12:09.84 0.3 undecidable manual P 346 60.3951 92 -0.21 66
IV.MF5.EHZ. 2023-03-26T13:12:09.79 0.3 undecidable manual P 17 55.5 92 0.49 61
IV.TERO.HHZ. 2023-03-26T13:12:09.40 0.3 undecidable manual S 65 30.4473 95 -0.52 65
IV.VCEL.EHZ. 2023-03-26T13:12:08.84 0.3 undecidable manual P 105 48.7179 92 0.58 61
IV.GIGS.HHZ. 2023-03-26T13:12:08.08 0.6 undecidable manual S 104 25.8519 97 -0.63 42
IV.T0110.HHZ. 2023-03-26T13:12:08.78 0.3 undecidable manual P 126 52.1034 92 0.01 69
MN.AQU.HNN. 2023-03-26T13:12:07.24 0.6 undecidable manual S 146 20.5683 101 -0.07 48
IV.MMO1.EHN. 2023-03-26T13:12:07.33 0.3 undecidable manual P 7 43.7229 93 -0.15 69
IV.ARRO.EHZ. 2023-03-26T13:12:07.04 0.3 undecidable manual P 281 41.625 93 -0.12 69
IV.LNSS.HHZ. 2023-03-26T13:12:07.58 0.3 undecidable manual S 300 21.1677 100 0.11 72
IV.FAGN.HHZ. 2023-03-26T13:12:06.55 0.3 undecidable manual P 136 37.4292 94 0.03 71
IV.GAVE.EHZ. 2023-03-26T13:12:06.29 0.1 undecidable manual P 304 36.5412 94 -0.09 94
IV.NRCA.HHZ. 2023-03-26T13:12:06.40 0.1 undecidable manual P 341 38.1285 93 -0.22 92
IV.TERO.HHZ. 2023-03-26T13:12:05.07 0.1 undecidable manual P 65 30.4473 95 -0.37 90
IV.SMA1.EHZ. 2023-03-26T13:12:05.90 0.1 undecidable manual S 23 14.6742 113 0.09 97
IV.CAMP.HHZ. 2023-03-26T13:12:05.10 0.3 undecidable manual S 75 12.1767 121 -0.09 73
IV.GIGS.HHZ. 2023-03-26T13:12:04.41 0.1 undecidable manual P 104 25.8519 97 -0.33 91
IV.MTRA.EHE. 2023-03-26T13:12:04.96 0.3 undecidable manual P 21 29.5482 95 -0.35 68
IV.LNSS.HHZ. 2023-03-26T13:12:04.16 0.1 undecidable manual P 300 21.1677 100 0.14 95
IV.RM33.HNZ. 2023-03-26T13:12:03.90 0.1 undecidable manual S 271 4.1958 157 0.11 100
IV.SMA1.EHZ. 2023-03-26T13:12:03.20 0.1 undecidable manual P 23 14.6742 113 0.13 96
MN.AQU.HNN. 2023-03-26T13:12:03.98 0.1 undecidable manual P 146 20.5683 101 0.05 97
IV.RM33.HNZ. 2023-03-26T13:12:02.18 0.1 undecidable manual P 271 4.1958 157 0.28 96
IV.CAMP.HHZ. 2023-03-26T13:12:02.80 0.1 undecidable manual P 75 12.1767 121 0.09 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.HNN. ML:2.4 0.0033653249999999997 0.1664 AML other m 2023-03-26T13:12:03.98
IV.RM33.EHN. ML:2.4 0.003296877 0.16 AML other m 2023-03-26T13:12:03.98
IV.RM33.EHE. ML:2.2 0.0020468095000000003 0.1216 AML other m 2023-03-26T13:12:05.20
IV.RM33.HNE. ML:2.2 0.0020882085 0.1344 AML other m 2023-03-26T13:12:05.20
IV.CAMP.HHN. ML:1.7 0.00046983884999999995 0.3776 AML other m 2023-03-26T13:12:05.40
IV.CAMP.HHE. ML:1.4 0.0002627728 0.2368 AML other m 2023-03-26T13:12:06.36
IV.SMA1.EHE. ML:2.8 0.0062749825 0.2432 AML other m 2023-03-26T13:12:06.27
IV.SMA1.EHN. ML:2.4 0.002311158 0.16 AML other m 2023-03-26T13:12:06.30
IV.LNSS.HHE. ML:2.6 0.002401215 0.16 AML other m 2023-03-26T13:12:07.80
IV.LNSS.HNE. ML:2.5 0.002040072 0.16 AML other m 2023-03-26T13:12:07.80
IV.LNSS.HNN. ML:2.6 0.002771328 0.1408 AML other m 2023-03-26T13:12:07.81
IV.LNSS.HHN. ML:2.6 0.0027747640000000003 0.1408 AML other m 2023-03-26T13:12:07.81
IV.GIGS.HHE. ML:1.1 0.000065761455 0.0832 AML other m 2023-03-26T13:12:08.72
IV.GIGS.HHN. ML:1.3 0.000101748645 0.1024 AML other m 2023-03-26T13:12:08.85
IV.TERO.HHE. ML:2.1 0.0005875 0.08 AML other m 2023-03-26T13:12:11.28
IV.TERO.HNE. ML:2.2 0.0007952424000000001 0.0832 AML other m 2023-03-26T13:12:11.29
IV.TERO.HNN. ML:2.2 0.0006733029500000001 0.0832 AML other m 2023-03-26T13:12:11.39
IV.TERO.HHN. ML:2.1 0.0006365846 0.0832 AML other m 2023-03-26T13:12:11.39
IV.GAVE.EHN. ML:2.2 0.0006134231999999999 0.16 AML other m 2023-03-26T13:12:11.67
IV.GAVE.HNN. ML:1.8 0.00022446485 0.1728 AML other m 2023-03-26T13:12:11.67
IV.NRCA.HNE. ML:2.6 0.0013206275000000002 0.1152 AML other m 2023-03-26T13:12:12.34
IV.NRCA.HHE. ML:2.6 0.0013631905 0.1152 AML other m 2023-03-26T13:12:12.34
IV.GAVE.EHE. ML:2.3 0.00082693275 0.1216 AML other m 2023-03-26T13:12:12.39
IV.GAVE.HNE. ML:2.3 0.00080294155 0.1216 AML other m 2023-03-26T13:12:12.39
IV.NRCA.HNN. ML:2.2 0.0006449318499999999 0.0768 AML other m 2023-03-26T13:12:12.79
IV.NRCA.HHN. ML:2.3 0.0007713385500000001 0.0832 AML other m 2023-03-26T13:12:12.79
IV.ARRO.EHN. ML:2.0 0.00030619405 0.256 AML other m 2023-03-26T13:12:13.42
IV.ARRO.EHE. ML:2.0 0.00031102885000000005 0.1984 AML other m 2023-03-26T13:12:14.82
IV.FAGN.HHE. ML:2.2 0.00056467015 0.3392 AML other m 2023-03-26T13:12:16.09
IV.FAGN.HHN. ML:2.2 0.0005537011 0.3392 AML other m 2023-03-26T13:12:17.29
IV.VCEL.EHN. ML:2.1 0.0003202371 0.1984 AML other m 2023-03-26T13:12:18.23
IV.MF5.EHN. ML:1.5 0.000073390645 0.2176 AML other m 2023-03-26T13:12:18.36
IV.T0110.HHE. ML:2.0 0.00024284115 0.2368 AML other m 2023-03-26T13:12:18.43
IV.VCEL.EHE. ML:2.0 0.00028591045000000005 0.4224 AML other m 2023-03-26T13:12:18.94
IV.MF5.EHE. ML:1.5 0.00007256723 0.16 AML other m 2023-03-26T13:12:19.35
IV.CESI.HHN. ML:2.1 0.00023966235 0.2624 AML other m 2023-03-26T13:12:19.59
IV.FDMO.HHN. ML:1.9 0.00014316925 0.1408 AML other m 2023-03-26T13:12:19.83
IV.CESI.HNN. ML:2.1 0.00022891359999999998 0.224 AML other m 2023-03-26T13:12:19.80
IV.CESI.HHE. ML:1.9 0.00016577965 0.3008 AML other m 2023-03-26T13:12:19.95
IV.CESI.HNE. ML:2.0 0.0001786774 0.3008 AML other m 2023-03-26T13:12:20.11
IV.FDMO.HHE. ML:1.8 0.00011921092 0.16 AML other m 2023-03-26T13:12:20.26
IV.GUMA.HHE. ML:2.0 0.00021376260000000003 0.3008 AML other m 2023-03-26T13:12:20.82
IV.MOMA.HNE. ML:2.1 0.00024389865 0.192 AML other m 2023-03-26T13:12:21.09
IV.T0110.HHN. ML:2.0 0.0002240861 0.3776 AML other m 2023-03-26T13:12:21.10
IV.MOMA.HHE. ML:2.1 0.0002415485 0.1408 AML other m 2023-03-26T13:12:21.09
IV.MOMA.HNN. ML:2.1 0.00023660685 0.256 AML other m 2023-03-26T13:12:21.31
IV.MOMA.HHN. ML:1.0 0.0000202662 0.1792 AML other m 2023-03-26T13:12:21.40
IV.MML1.EHN. ML:1.7 0.000078515725 0.1408 AML other m 2023-03-26T13:12:22.63
IV.CSP1.EHE. ML:1.9 0.00014209369999999998 0.1408 AML other m 2023-03-26T13:12:22.64
IV.MML1.HNN. ML:1.9 0.00013871669999999999 0.4416 AML other m 2023-03-26T13:12:23.43
IV.GUMA.HHN. ML:2.0 0.00019668685 0.384 AML other m 2023-03-26T13:12:23.60
IV.CSP1.EHN. ML:2.0 0.0001709179 0.16 AML other m 2023-03-26T13:12:23.88
IV.MML1.EHE. ML:1.8 0.000109599595 0.1984 AML other m 2023-03-26T13:12:24.37
IV.ASSB.HHE. ML:2.1 0.0001945115 0.2624 AML other m 2023-03-26T13:12:25.18
IV.ASSB.HHN. ML:2.3 0.0003143768 0.16 AML other m 2023-03-26T13:12:25.26
IV.RCAV.EHE. ML:1.4 0.000034211615000000004 0.2624 AML other m 2023-03-26T13:12:29.69
IV.RCAV.EHN. ML:1.4 0.00003971633 0.3584 AML other m 2023-03-26T13:12:30.84
IV.INTR.HHE. ML:1.5 0.000048698485 0.6016 AML other m 2023-03-26T13:12:32.17
IV.INTR.HHN. ML:1.7 0.00007407501 0.6976 AML other m 2023-03-26T13:12:32.44
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