Earthquake with magnitude of Md 2.8 on date 26-05-1988 and time 21:45:24 (Italy) in region 2 km NW Montereale (AQ)

A magnitude Md 2.8 earthquake occured in region: 2 km NW Montereale (AQ), on

  • 26-05-1988 19:45:24 (UTC)
  • 26-05-1988 21:45:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.54, 13.24 at 5 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
Montereale AQ 2 2581 2581
Capitignano AQ 6 665 3246
Cagnano Amiterno AQ 9 1369 4615
Borbona RI 9 617 5232
Barete AQ 10 737 5969
Cittareale RI 11 482 6451
Amatrice RI 11 2657 9108
Campotosto AQ 11 542 9650
Posta RI 12 694 10344
Pizzoli AQ 12 4326 14670
Accumoli RI 18 667 15337
Micigliano RI 18 127 15464
Antrodoco RI 19 2588 18052
Scoppito AQ 19 3727 21779

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NW of L'Aquila (69753 inhabitants)
41 Km W of Teramo (54892 inhabitants)
48 Km E of Terni (111501 inhabitants)
64 Km SE of Foligno (57155 inhabitants)
73 Km NE of Guidonia Montecelio (88673 inhabitants)
73 Km NE of Tivoli (56533 inhabitants)
75 Km W of Montesilvano (53738 inhabitants)
79 Km W of Chieti (51815 inhabitants)
81 Km W of Pescara (121014 inhabitants)
94 Km SE of Perugia (166134 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
95 Km NE of Roma (2864731 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
Rev 1000 Md 2.8
ML-VAX 2.3
1988-05-26
19:45:24
42.54 13.24 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 70269
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-05-26 19:45:24 ± 0.144
Latitude 42.54 ± 0.01
Longitude 13.24 ± 0.02
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 70269

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 1608.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00194
Epicentral distance of station farthest from the epicenter (degree) 0.01894
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

Md:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations 10
Type of magnitude Md
Reference to an origin 70269
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:06:33

ML:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 7
Type of magnitude ML
Reference to an origin 70269
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SFI.Z. 1988-05-26T19:46:18.57 10.0 undecidable manual SN 324 0.0152 1.83 0
--.FG2.Z. 1988-05-26T19:46:13.57 10.0 undecidable manual SN 116 0.0144 -0.88 0.2
--.RSM.Z. 1988-05-26T19:46:12.73 10.0 undecidable manual SN 337 0.0135 0.66 0.3
--.CRE.Z. 1988-05-26T19:46:11.27 10.0 undecidable manual SN 319 0.0129 0.89 0.3
--.AM8.Z. 1988-05-26T19:46:02.50 10.0 undecidable manual SG 14 0.0094 1.62 0.1
--.TR9.Z. 1988-05-26T19:46:01.70 10.0 undecidable manual PN 134 0.0189 1.48 0.2
--.ARV.Z. 1988-05-26T19:45:58.65 10.0 undecidable manual SG 347 0.0088 -0.29 0.6
--.SDI.Z. 1988-05-26T19:45:56.54 10.0 undecidable manual SG 152 0.0083 -0.73 0.4
--.SFI.Z. 1988-05-26T19:45:55.50 10.0 undecidable manual PN 324 0.0152 0.84 0.6
--.RDP.Z. 1988-05-26T19:45:54.31 10.0 undecidable manual SG 206 0.0078 -0.98 0.4
--.RMP.Z. 1988-05-26T19:45:54.81 10.0 undecidable manual SG 208 0.0074 0.87 0.3
--.FG2.Z. 1988-05-26T19:45:54.93 10.0 undecidable manual PN 116 0.0144 1.59 0.1
--.CRE.Z. 1988-05-26T19:45:52.40 10.0 undecidable manual PN 319 0.0129 1.05 0.5
--.RSM.Z. 1988-05-26T19:45:52.11 10.0 undecidable manual PN 337 0.0135 0.14 1.2
--.ASS.Z. 1988-05-26T19:45:49.40 10.0 undecidable manual SG 320 0.0061 -0.05 1
--.CP9.Z. 1988-05-26T19:45:49.77 10.0 undecidable manual SG 197 0.0063 -0.34 0.6
--.CM8.Z. 1988-05-26T19:45:47.76 10.0 undecidable manual SG 354 0.0059 -0.77 0.4
--.AZI.Z. 1988-05-26T19:45:44.54 10.0 undecidable manual SG 165 0.0051 -1.16 0.3
--.AM8.Z. 1988-05-26T19:45:44.83 10.0 positive manual PG 14 0.0094 -0.68 2.1
--.ARV.Z. 1988-05-26T19:45:43.53 10.0 undecidable manual PG 347 0.0088 -0.85 0.8
--.MNS.Z. 1988-05-26T19:45:42.90 10.0 undecidable manual SG 249 0.0039 0.66 0.4
--.SDI.Z. 1988-05-26T19:45:42.59 10.0 undecidable manual PG 152 0.0083 -0.83 0.9
--.SS8.Z. 1988-05-26T19:45:42.29 10.0 undecidable manual SG 359 0.0042 -0.11 0.7
--.RDP.Z. 1988-05-26T19:45:42.61 10.0 positive manual PG 206 0.0078 0.33 3
--.RMP.Z. 1988-05-26T19:45:41.86 10.0 undecidable manual PG 208 0.0074 0.36 1.5
--.ASS.Z. 1988-05-26T19:45:38.33 10.0 positive manual PG 320 0.0061 -0.37 2.9
--.CP9.Z. 1988-05-26T19:45:38.79 10.0 undecidable manual PG 197 0.0063 -0.5 1.3
--.CM8.Z. 1988-05-26T19:45:37.74 10.0 positive manual PG 354 0.0059 -0.63 2.3
--.ALP.Z. 1988-05-26T19:45:37.90 10.0 undecidable manual SG 45 0.0031 0.1 0.7
--.AZI.Z. 1988-05-26T19:45:35.76 10.0 undecidable manual PG 165 0.0051 -0.98 0.7
--.SS8.Z. 1988-05-26T19:45:34.33 10.0 positive manual PG 359 0.0042 -0.51 2.6
--.MNS.Z. 1988-05-26T19:45:33.97 10.0 undecidable manual PG 249 0.0039 -0.3 1.5
--.ALP.Z. 1988-05-26T19:45:32.47 10.0 positive manual PG 45 0.0031 0.29 3.1
--.AQU.Z. 1988-05-26T19:45:32.50 10.0 undecidable manual SG 146 0.0019 -0.69 0.4
--.AQU.Z. 1988-05-26T19:45:30.13 10.0 negative manual PG 146 0.0019 0.62 2.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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