Earthquake with magnitude of ML 1.2 on date 21-01-2023 and time 10:07:25 (UTC) in region 4 km N San Severino Marche (MC)

A magnitude ML 1.2 earthquake occured in region: 4 km N San Severino Marche (MC), on

  • 21-01-2023 10:07:25 (UTC)
  • 21-01-2023 11:07:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.2660, 13.1690 at 16 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
San Severino Marche MC 4 12726 12726
Gagliole MC 9 620 13346
Serrapetrona MC 10 966 14312
Castelraimondo MC 11 4587 18899
Tolentino MC 11 20069 38968
Belforte del Chienti MC 13 1886 40854
Cingoli MC 13 10352 51206
Treia MC 13 9403 60609
Matelica MC 13 9981 70590
Poggio San Vicino MC 14 246 70836
Apiro MC 15 2280 73116
Pollenza MC 15 6618 79734
Caldarola MC 15 1823 81557
Cerreto d'Esi AN 16 3817 85374
Camerino MC 17 6974 92348
Camporotondo di Fiastrone MC 17 563 92911
Pioraco MC 18 1134 94045
Esanatoglia MC 18 2034 96079
Appignano MC 18 4213 100292
Urbisaglia MC 19 2628 102920
Staffolo AN 19 2253 105173
Cessapalombo MC 19 512 105685
Colmurano MC 19 1263 106948

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km SW of Ancona (100861 inhabitants)
51 Km NE of Foligno (57155 inhabitants)
65 Km S of Fano (60888 inhabitants)
66 Km E of Perugia (166134 inhabitants)
75 Km S of Pesaro (94582 inhabitants)
80 Km NW of Teramo (54892 inhabitants)
89 Km NE of Terni (111501 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 1.2 2023-01-21
10:07:25
43.266 13.1688 16 2024-03-01
17:18:14
Bollettino Sismico Italiano INGV 119940491
Reviewed
Rev100
ML 1.3 2023-01-21
10:07:25
43.2733 13.163 16 2023-01-21
10:38:39
Sala Sismica INGV-Roma 113713821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-21 10:07:25 ± 0.11
Latitude 43.2660 ± 0.0036
Longitude 13.1688 ± 0.0062
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 119940491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 489
Semi-minor axis of confidence ellipse (meter) 380
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 261
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 159
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.08004
Epicentral distance of station farthest from the epicenter (degree) 0.37861
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.5
Num. used stations 13
Type of magnitude ML
Reference to an origin 119940491
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-08 12:29:02

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 113713821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-21 10:38:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
7F.SIB1.EHE. 2023-01-21T10:07:39.70 0.3 undecidable manual S 169 42.0246 99 0.43 65
IV.FDMO.HHN. 2023-01-21T10:07:35.10 0.3 undecidable manual S 195 26.2515 108 -0.09 72
IV.MML1.EHZ. 2023-01-21T10:07:34.50 0.3 undecidable manual S 223 23.2545 112 0.07 73
IV.SNTG.HHZ. 2023-01-21T10:07:33.20 0.3 undecidable manual S 266 18.4704 120 -0.08 73
IV.CSP1.EHZ. 2023-01-21T10:07:33.60 0.6 undecidable manual S 171 19.5693 118 0.07 49
7F.SIB1.EHE. 2023-01-21T10:07:33.34 0.1 undecidable manual P 169 42.0246 99 -0.11 94
IV.CING.HHZ. 2023-01-21T10:07:31.90 0.1 undecidable manual S 10 12.3765 134 -0.06 99
IV.FDMO.HHN. 2023-01-21T10:07:31.05 0.1 undecidable manual P 195 26.2515 108 -0.04 97
IV.EL6.EHZ. 2023-01-21T10:07:31.50 0.1 undecidable manual S 322 8.88 145 0.14 99
IV.MML1.EHZ. 2023-01-21T10:07:30.60 0.1 undecidable manual P 223 23.2545 112 -0.05 98
IV.CSP1.EHZ. 2023-01-21T10:07:30.13 0.1 undecidable manual P 171 19.5693 118 0 99
IV.CING.HHZ. 2023-01-21T10:07:29.25 0.1 undecidable manual P 10 12.3765 134 0.02 100
IV.SNTG.HHZ. 2023-01-21T10:07:29.97 0.1 undecidable manual P 266 18.4704 120 -0.02 99
IV.PF6.EHZ. 2023-01-21T10:07:29.34 0.1 undecidable manual P 172 14.3745 129 -0.12 98
IV.EL6.EHZ. 2023-01-21T10:07:28.99 0.1 undecidable manual P 322 8.88 145 0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SNTG.HHN. ML:1.2 0.00009642211 0.9568 AML other m 2023-01-21T10:07:29.41
IV.CSP1.EHN. ML:1.9 0.0004798337 0.1792 AML other m 2023-01-21T10:07:30.52
IV.CING.HHE. ML:0.5 0.000026770230000000005 0.0576 AML other m 2023-01-21T10:07:32.00
IV.CING.HNN. ML:2.8 0.006492366 0.1248 AML other m 2023-01-21T10:07:32.75
IV.EL6.EHN. ML:0.0 0.000058785875 0.16 AML other m 2023-01-21T10:07:31.90
IV.CSP1.EHE. ML:1.0 0.00005806425999999999 0.8416 AML other m 2023-01-21T10:07:34.73
IV.CING.HNE. ML:2.8 0.005601261 0.7552 AML other m 2023-01-21T10:07:35.47
IV.SNTG.HNE. ML:1.4 0.00016274899999999998 0.352 AML other m 2023-01-21T10:07:37.70
IV.SNTG.HHE. ML:1.1 0.00007996448 1.3568 AML other m 2023-01-21T10:07:38.69
IV.EL6.EHE. ML:0.0 0.0000761773 0.1408 AML other m 2023-01-21T10:07:31.80
IV.SNTG.HNN. ML:1.4 0.00014903685 0.4832 AML other m 2023-01-21T10:07:42.09
IV.CING.HHN. ML:0.0 0.000067915175 0.1216 AML other m 2023-01-21T10:07:32.20
IV.IMOL.HNN. ML:3.4 0.0011560000000000001 0.04 AML other m 2023-01-21T10:08:31.55
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