diff --git a/x-pack/plugins/observability/public/pages/alerts/alerts_flyout/index.tsx b/x-pack/plugins/observability/public/pages/alerts/alerts_flyout/index.tsx
index 90032419948ef..c4d455fb43b7f 100644
--- a/x-pack/plugins/observability/public/pages/alerts/alerts_flyout/index.tsx
+++ b/x-pack/plugins/observability/public/pages/alerts/alerts_flyout/index.tsx
@@ -24,7 +24,6 @@ import type {
   ALERT_DURATION as ALERT_DURATION_TYPED,
   ALERT_EVALUATION_THRESHOLD as ALERT_EVALUATION_THRESHOLD_TYPED,
   ALERT_EVALUATION_VALUE as ALERT_EVALUATION_VALUE_TYPED,
-  ALERT_SEVERITY_LEVEL as ALERT_SEVERITY_LEVEL_TYPED,
   ALERT_UUID as ALERT_UUID_TYPED,
   ALERT_RULE_CATEGORY as ALERT_RULE_CATEGORY_TYPED,
   ALERT_RULE_NAME as ALERT_RULE_NAME_TYPED,
@@ -33,7 +32,6 @@ import {
   ALERT_DURATION as ALERT_DURATION_NON_TYPED,
   ALERT_EVALUATION_THRESHOLD as ALERT_EVALUATION_THRESHOLD_NON_TYPED,
   ALERT_EVALUATION_VALUE as ALERT_EVALUATION_VALUE_NON_TYPED,
-  ALERT_SEVERITY_LEVEL as ALERT_SEVERITY_LEVEL_NON_TYPED,
   ALERT_UUID as ALERT_UUID_NON_TYPED,
   ALERT_RULE_CATEGORY as ALERT_RULE_CATEGORY_NON_TYPED,
   ALERT_RULE_NAME as ALERT_RULE_NAME_NON_TYPED,
@@ -46,7 +44,6 @@ import { useKibana, useUiSetting } from '../../../../../../../src/plugins/kibana
 import { asDuration } from '../../../../common/utils/formatters';
 import type { ObservabilityRuleTypeRegistry } from '../../../rules/create_observability_rule_type_registry';
 import { parseAlert } from '../parse_alert';
-import { SeverityBadge } from '../severity_badge';
 
 type AlertsFlyoutProps = {
   alert?: TopAlert;
@@ -59,7 +56,6 @@ type AlertsFlyoutProps = {
 const ALERT_DURATION: typeof ALERT_DURATION_TYPED = ALERT_DURATION_NON_TYPED;
 const ALERT_EVALUATION_THRESHOLD: typeof ALERT_EVALUATION_THRESHOLD_TYPED = ALERT_EVALUATION_THRESHOLD_NON_TYPED;
 const ALERT_EVALUATION_VALUE: typeof ALERT_EVALUATION_VALUE_TYPED = ALERT_EVALUATION_VALUE_NON_TYPED;
-const ALERT_SEVERITY_LEVEL: typeof ALERT_SEVERITY_LEVEL_TYPED = ALERT_SEVERITY_LEVEL_NON_TYPED;
 const ALERT_UUID: typeof ALERT_UUID_TYPED = ALERT_UUID_NON_TYPED;
 const ALERT_RULE_CATEGORY: typeof ALERT_RULE_CATEGORY_TYPED = ALERT_RULE_CATEGORY_NON_TYPED;
 const ALERT_RULE_NAME: typeof ALERT_RULE_NAME_TYPED = ALERT_RULE_NAME_NON_TYPED;
@@ -97,14 +93,8 @@ export function AlertsFlyout({
       description: alertData.active ? 'Active' : 'Recovered',
     },
     {
-      title: i18n.translate('xpack.observability.alertsFlyout.severityLabel', {
-        defaultMessage: 'Severity',
-      }),
-      description: <SeverityBadge severityLevel={alertData.fields[ALERT_SEVERITY_LEVEL]} />,
-    },
-    {
-      title: i18n.translate('xpack.observability.alertsFlyout.triggeredLabel', {
-        defaultMessage: 'Triggered',
+      title: i18n.translate('xpack.observability.alertsFlyout.lastUpdatedLabel', {
+        defaultMessage: 'Last updated',
       }),
       description: (
         <span title={alertData.start.toString()}>{moment(alertData.start).format(dateFormat)}</span>
diff --git a/x-pack/plugins/observability/public/pages/alerts/alerts_table_t_grid.tsx b/x-pack/plugins/observability/public/pages/alerts/alerts_table_t_grid.tsx
index d84c820e5d0bd..d8ba7a96ad2c6 100644
--- a/x-pack/plugins/observability/public/pages/alerts/alerts_table_t_grid.tsx
+++ b/x-pack/plugins/observability/public/pages/alerts/alerts_table_t_grid.tsx
@@ -13,14 +13,12 @@
 import {
   AlertConsumers as AlertConsumersTyped,
   ALERT_DURATION as ALERT_DURATION_TYPED,
-  ALERT_SEVERITY_LEVEL as ALERT_SEVERITY_LEVEL_TYPED,
   ALERT_STATUS as ALERT_STATUS_TYPED,
   ALERT_RULE_NAME as ALERT_RULE_NAME_TYPED,
   ALERT_RULE_CONSUMER,
 } from '@kbn/rule-data-utils';
 import {
   ALERT_DURATION as ALERT_DURATION_NON_TYPED,
-  ALERT_SEVERITY_LEVEL as ALERT_SEVERITY_LEVEL_NON_TYPED,
   ALERT_STATUS as ALERT_STATUS_NON_TYPED,
   ALERT_RULE_NAME as ALERT_RULE_NAME_NON_TYPED,
   TIMESTAMP,
@@ -66,7 +64,6 @@ import { CoreStart } from '../../../../../../src/core/public';
 
 const AlertConsumers: typeof AlertConsumersTyped = AlertConsumersNonTyped;
 const ALERT_DURATION: typeof ALERT_DURATION_TYPED = ALERT_DURATION_NON_TYPED;
-const ALERT_SEVERITY_LEVEL: typeof ALERT_SEVERITY_LEVEL_TYPED = ALERT_SEVERITY_LEVEL_NON_TYPED;
 const ALERT_STATUS: typeof ALERT_STATUS_TYPED = ALERT_STATUS_NON_TYPED;
 const ALERT_RULE_NAME: typeof ALERT_RULE_NAME_TYPED = ALERT_RULE_NAME_NON_TYPED;
 
@@ -134,14 +131,6 @@ export const columns: Array<
     id: ALERT_DURATION,
     initialWidth: 116,
   },
-  {
-    columnHeaderType: 'not-filtered',
-    displayAsText: i18n.translate('xpack.observability.alertsTGrid.severityColumnDescription', {
-      defaultMessage: 'Severity',
-    }),
-    id: ALERT_SEVERITY_LEVEL,
-    initialWidth: 102,
-  },
   {
     columnHeaderType: 'not-filtered',
     displayAsText: i18n.translate('xpack.observability.alertsTGrid.reasonColumnDescription', {
diff --git a/x-pack/plugins/translations/translations/ja-JP.json b/x-pack/plugins/translations/translations/ja-JP.json
index 509dfff7ef829..a6b31dce2ca11 100644
--- a/x-pack/plugins/translations/translations/ja-JP.json
+++ b/x-pack/plugins/translations/translations/ja-JP.json
@@ -18412,9 +18412,7 @@
     "xpack.observability.alertsFlyout.durationLabel": "期間",
     "xpack.observability.alertsFlyout.expectedValueLabel": "想定された値",
     "xpack.observability.alertsFlyout.ruleTypeLabel": "ルールタイプ",
-    "xpack.observability.alertsFlyout.severityLabel": "深刻度",
     "xpack.observability.alertsFlyout.statusLabel": "ステータス",
-    "xpack.observability.alertsFlyout.triggeredLabel": "実行済み",
     "xpack.observability.alertsLinkTitle": "アラート",
     "xpack.observability.alertsTitle": "アラート",
     "xpack.observability.breadcrumbs.alertsLinkText": "アラート",
diff --git a/x-pack/plugins/translations/translations/zh-CN.json b/x-pack/plugins/translations/translations/zh-CN.json
index 025cc76527d50..4274f41a8f579 100644
--- a/x-pack/plugins/translations/translations/zh-CN.json
+++ b/x-pack/plugins/translations/translations/zh-CN.json
@@ -18649,9 +18649,7 @@
     "xpack.observability.alertsFlyout.durationLabel": "持续时间",
     "xpack.observability.alertsFlyout.expectedValueLabel": "预期值",
     "xpack.observability.alertsFlyout.ruleTypeLabel": "规则类型",
-    "xpack.observability.alertsFlyout.severityLabel": "严重性",
     "xpack.observability.alertsFlyout.statusLabel": "状态",
-    "xpack.observability.alertsFlyout.triggeredLabel": "已触发",
     "xpack.observability.alertsLinkTitle": "告警",
     "xpack.observability.alertsTitle": "告警",
     "xpack.observability.breadcrumbs.alertsLinkText": "告警",